Saw the flat today....
UPs: Room is nice and big, kitchen's nice and big (and has dishwasher), garden has a cat flap in the door which my kitty would appreciate, bathroom's big/new.
IAs: 2 rooms upstairs are still being renovated/finished, so there were people wandering in and out while I was there (though they didn't appear to be doing anything). The guy I met who's lived there for years said that this renovation started back in April and was meant to last 3 months, and still isn't done. (And there's more work planned for next April.) Depending on what the landlord decides to do (apparently he changes his mind a lot), he may rent out all the rooms, which would leave no sitting room area.
So...I'm torn. On the one hand, it's cheap, has the amenities I want (eat-in kitchen, large room, dishwasher, park nearby for the dog). On the other hand, the sitting room may be nixed, and who knows when builders/random people will be done with all their work.
Sigh.