I have been happy here. There have only been a very few instances where anything was said to me to make me feel unwelcome, in over two years. Generally people have been extremely welcoming. The Daughter has had a different set of experiences, but she's been out and about more than I have. Plus, I'm old and she's not.
I enjoy the quality of the food in the grocery store, the clean air, the general low-key-ness of life here. Not needing to have a car (they are such a pain and expense!). Being able to hop a bus or train to the country for the day. Meeting people from Eastern Europe and Africa, as well as the locals. Not worrying about being bankrupted if I become ill, or fell down a mountain while out walking and got billed an obscene amount of money for a rescue helicopter, as I would be in the USA.
I don't miss the culture of the USA at all, really. Except maybe around the Holidays. The Holidays are done differently here, and some that were important to us do not exist here. (Halloween, for one.) I've noticed there seems to be some sort of preoccupation with "doing it properly" rather than enjoying the holidays the way we always have. There are some things, such as that sort of mindset, that I don't like about the culture here, but it's not forced on me excessively so I can pretty much ignore those bits. There is a sort of generic incompetence/don't give a damn I find in a lot of lower-level workers (delivery people, shop clerks, repairmen, etc.) that is annoying - in the States they'd have been long fired. But that seems to be tolerated here. The general educational level of "the masses" seems to be really low, as well. The Scottish kids I've met seem to know almost nothing about Scottish history, for example, which is just mind-boggling. But I can't compare it to the USA really, as I didn't mix as much with people outside of my general sphere there (academia) very much. Given that the Kardashians (sp?) are media stars in the USA and the President that was elected by those masses, I'm not sure I can be throwing stones at the Scots on all that....
I miss a lot of the conveniences we had in the USA, especially shopping (Target!). I definitely miss the salary scale - here they expect waaaay too much for waaaay too little pay here. Thankfully I do not have to work, as I'd be really ticked off to have to take 1/4th to 1/3rd of my prior income to be doing a similar amount of work. But as I'm basically retired, and my income is all in dollars, Brexit hasn't hit my pocketbook too much - yet. RIght now the dollar is running just about the same to the pound as it was when we first moved over here a few years ago. When the dollar drops, my spending power drops (so my rent and bills effectively go up proportionally). That's the only downside to my financial situation - if the dollar tanks against the pound, my wallet will be hurting. But so far it looks like it would only be the opposite with Brexit, at least for the next several years. The lower the pound sinks, the more I have available to spend in the UK. Of course, if the cost of goods (which is already bizarrely high for durable goods) goes up, that advantage will vanish. But I'll be in a better place than someone whose income is in pounds. Unfortunately, the Daughter's income value, as she is on the local economy and paid in pounds, is shrinking when she looks at the price of goods in the USA v. the dollar/pound conversion rate. And as the cost of "stuff" goes up here.
I am also an EU citizen, so I can still go anywhere in the EU if things go too far south here. The Daughter is not, however, so her options are muddle through here or go back to the USA, at present. If she goes back, she can't get back into the UK on the same basis as she is here now. (It would have to be a work permit, which is unlikely in her field.) So if we leave before she gets full settled status (2022) it will be with the understanding that we probably cannot come back.
Realistically, when looking at all things very conservatively in a very worst-case scenario, she's safer here as far as ever having to deal with medical issues or potential homelessness, than she would be in the USA. Financially, in a best-case (healthy, well-employed) scenario she'd generally be very much better off in the USA in the long run, as things stand. Right now she is not able to work full-time as she is here as the dependent adult child of an EU citizen. If she earns enough to be hypothetically self-supporting, she is no longer my dependent and her status is invalidated, leaving her open to sudden deportation. As long as EU law is in place, that is the mechanism that allows her to remain in the UK. Once Brexit hits, supposedly her pre-settled EU status would take over. We are still waiting to hear if her new pre-settled status, which is running concurrently with her EU status, would protect her if she gives up her EU status to work. That is, if she will be able to do meaningful work based on pre-settlement, or not. If she is not, that pretty much steers our direction away from remaining in the UK for the long-term. If she can work professionally, that changes the landscape a lot.
I'd really rather stay here than go back to the USA, but as we each have no other family it's kind of a package deal for us. As I can go anywhere (well, not everywhere, but I can go here or EU or USA), if it's best for the Daughter to be elsewhere, that's where we'll go. We can still both go to the EU, but would run into the same kind of work restrictions, I think. I could get her into an EU country as a dependent, but she'd then be one for another five years. That's too long - if she was 18 it wouldn't be such a big deal, but she isn't that young and really is at a point that she needs to get a retirement nest-egg building and a career online. IF Brexit were not happening and she had the option to move anywhere in the EU for work, that would change the mix as well. Her chances of professional employment in her field would be greatly enhanced if we were "settled" here which, under EU law would allow her to move/live/work anywhere in the EU. The EU is a larger playing field for her than just the UK. But Brexit kills that option - we can't (using any mechanism I'm aware of) get her settled here before Brexit hits and the UK is no longer part of the EU. If it were that we could do it before Brexit, we'd probably make the jump to the EU. But we can't, so best to not think about the lost opportunities there.
SO, I very much prefer living here. But unless we get good news in the next few months - at least by Christmas - I think we'll probably be taking steps to start the ball rolling to return to the USA. (Because the Daughter wants to leave.) Brexit is a mixed bag for us. So far the only really negative thing it's done directly to us (aside from removing access to the EU for my daughter's future professional career) is raised the cost of shipping our stuff back to the USA by a substantial amount. That and I'm noticing a lot of the shops on our local high street are closing or have closed. That, I think, will only get worse in the near term.