Moved from very Urban central central London to the boonies (edge of very small rural market town surrounded by 'rural'). Loving it. Having grown up in central London (bang in the middle) I am so happy I moved. We have loads of national trust places on our doorstep, yes a lot of land is privately owned but there are plenty of bridle ways and footpaths. Loads of farms to visit when kids were teeny and woodland to muck around in, hedgerows to forage, amazing wildlife. Dark skies so you can see the stars, clean air, green everywhere (particularly at this time of year it's totally lush). Our town is big enough to know nearly everyone with kids similar ages, but not too small so you can have 'space'. Lovely group of likeminded people, know and like all our neighbours, all friends within 10-15min walk. All the clubs for kids are available in walking distance / very short drive (swimming, cubs, brownies, martial arts, dance etc etc, too many to choose from). School is 5 min/15mjn walk away (primary/secondary) with amazing school results as everyone goes there (not creamed off into private). Loads of community events and markets with local grown food, and if your kid gets into bother everyone gives a damn and pitches in to help (even at 3am!). Ok I admit our town was in top 5 of Torygraph 'best places to raise a family' but it really is lovely, even in winter when it is fecking ridiculously cold and wet. We have stunning restaurants (inc Michelin starred) and lovely indie coffee bars and cafes.
Do I miss London? Yes of course I do. I miss the history and buildings and business. I miss the transport (there's a country bus 2xhr at peak time). But internet shopping rocks, and I can be in and out of a shop and not get stuck in't traffic for 2hrs like London. Kids possibly aren't able to shop, but then my kids aren't at all materialistic and prefer to Play on the street with their mates, which I can let them do due to no traffic and no weirdos.
Biggest thing I miss though is lack of multicultural society. It's naice to be with friends all the time but there is next to no diversity (and I have looked!) and that will be a shock to my kids when they are older, and growing up I really loved different cultures. So that is the biggest negative, other than being a long way from the majority of my pre-kids friends. But they love visiting our bit of heaven :)
The rest of it is fab.
Apart from the sodding pollen 