We did this 5 years ago. Moved to a tiny village of 40 houses and no facilities, with a 15 min drive to the closest (small!) shop. We have dds who are 1 and 3.
I love it and I would never move back. The safety and freedom my kids have enhances their quality of life. The area is beautiful and isolated, and the kids have access to nature in a way they never would in the city where we used to live.
There are big downsides in terms of driving big distances for work (dp and I both commute an hour, there is almost no local work unless you're a farmer or work for the forestry commission). I do spend a lot of time driving the kids about to various clubs and activities, and there's a limited choice available.
The local community is not always welcoming to newcomers, and I would say it took at least 3 years before we felt more accepted. Tbh, we still are primarily friends with other 'newcomers' to the area. But there are a fair few likeminded people who.moved here with similar ideas to us and similar age kids, and we have a nice little community.
I do worry about when the kids are teenagers, and how bored and isolated they will feel. School provision is also a concern, as the kids are bused quite big distances to school (20 mins to first school, 40 mins to middle school) and the provision for secondary school.is weekly boarding, which I'm not wild about. The local schools are also tiny (27 kids in total in the first school, dd1 will be in a class of 7) which might lead to problems with lack of friendship choices. That said, there's far more of a feel (both for kids and adults) of having to rub along because there aren't that many of us, and people do help out when you need it.
Other problems I've come across is that there's almost no childcare available (just one part time childminder who's often booked up), you have to be organised about getting shopping and we have been snowed in for a week every winter except one. But the pay off is worth it for us.