We are Americans living in England
Pros:
As long as you get a good/great school, public school is free and good quality
Pubs in almost every village/few blocks if in a city. You can always wobble yourself home basically
People are generally more open minded and liberal
Fab for those who loves history, you can even participate in many reenacting events
Loads of activities for families! Many are free or a pretty cheap year membership, £80-£100/year or so gets you unlimited entrance to castles, estates, parks, and piles of rocks aka Stonehenge :) During school holidays these places has extra events for free or extra £1. I think it's like having Wiiliamsburg in every county!!
NHS has moments but in general, it's a really great thing that England has
Only huge cities sprawl it seems. And even then it's not as bad as the US. We live 13 miles from Cambridge but we're in a village. There are villages about 6 miles out of Cambridge and it's still a sleepy village. No shopping strips or no huge development.
No major natural disaster potential. There's big waves/wind, floods and occasional snow storms but no hurricanes, tornadoes, etc
Lots of old places. It was neat to stand on Hadrian's wall :)
Children's activities are cheaper. $5/ballet class compare to dd in the US at $10 I think.
Cheap drugs. 30 pence for ibuprofen! 10 in a pack I think.
Easier to eat well here. Even restaurant use local products and happy meat. Packaged food are better material too. Less junk/preservatives... Just nicer.
Grocery delivery!!! Even to tiny villages!
Cons
If you make dollars, the exchange is crappier right now. The prices are equivalent, $10 in the US and £10 in the UK for a build-a-bear outfit or £5 and $5 chicken. But if you don't make ££, it's extra cost.
There is no transport for children. I drop and pick up the kids at school. There's no drop and go, where you drive to the school gate/door and a teacher/aid will receive them and you go, or the bus/car queue. You got to walk/drive them to school and wait until the bell rings. This is R-year 6. Year 7 on you have transport option. So, if you work and have ownership of young children, you need to be lucky and live in a village where the school has before/after school care (7:30-9a and 3:15-6p at ours) or find a daycare/child minder that does pickup and drop off.
Proper clubs are difficult to find. Competitive gymnastics club are everywhere in the US. Here, one every 30-45 min IF you're lucky. Dd is a gymnast, 45 min away and 12-15hrs a week. Our old gym in the US, 10 min away!! Ditto for most sports/activities. There are many many rec clubs but for anything more serious, it'll be a drive unless you're lucky.
Real estate is expensive for the size. If we make ££ it's a bit more reasonable but if you make $$, it'll be like buying in a big city. And we really don't want to live in the middle of nowhere.
Traffic can be hell!! Rural areas have tiny roads and 5 miles can take 15-20 min. If there is a fatal accident on the highway, hope you brought food and a potty! The road can be closed for a few hours.
We LOVE living here though. LOVE! We would love to reach our million and run a pub here! If I am, or hubby too, are ambitious, we can go back and apply for a Tier 1 visa. But, our kids are still young and so we're going back in a few years, send them off to college, stock up our investments (hope the market stays healthy) and come back. My husband's one of those people who makes friends easily and people like (where I am the opposite) and while most Americans here stick to other Americans, my husband has made friends with all the village people, hangs out at the pubs, and the owners love him.