Honestly, I think it's never the same visiting somewhere as living there permanently. Visiting is always more glamorous!
I would recommend you visit the local schools you are looking at (primary schools, pre-schools, nurseries) and find out about enrolment. Find out how competitive they are to get into and what criteria the previous class had (how many spots were available, how many were admitted because of siblings, how close they had to live to the school to get in, how big the waitlist was).
If you plan to work, have a look at the current job market.
If you won't have a car when you move, use public transport during your stay exclusively so you really get a feel of how it would be after you moved.
Shop at local stores for food and clothing.
Have a look at the current housing market. What's available and what you can afford in your budget.
Go to some local playgroups.
Enjoy yourself but try to immerse yourself in living here. Try not to have it be a long holiday, if that makes sense?