Just to share my experiences with you, I lived in Belgium for 15 years and loved it. Arrived there a student and 'grew up' there, settled properly into life and work and had 2 DC there.
Last year we moved to Sweden, where DH is from. DD2 was very young and there is no possibility of childcare for children under 12 months in the Swedish system. This meant me being a SAHM which I had never been before, having returned to work after DD1 when she was 3 months old.
We knew this and what it would mean for example financially and prepared for such. However I found it very tough indeed being home all the time with the DDs. DD1 is entitled to 15 hours a week of nursery while I'm home with DD2, and the hours are very strict so it's not always convenient for DD2. I have found the relentlessness of full time SAHM-ness to be a killer although that may well be because of managing the effects of two small children, moving, house-hunting, language-learning all in one go. It's getting better now!!
We are in a small town and found people to be much more friendly than when we lived in a larger town when we initially arrived. I speak basic Swedish and people around are accepting of my funny accent etc. A few offered to speak English to me in the beginning, but I kind of insisted as we are here for the long haul and I didn't want to be akward in company. I notice that Swedes are good at English, but shy about using it socially so it helps that I have my basic skills and I know that if I throw in an English word or two that they will understand.
I openly admit that I have struggled. This move was more for DH than for me. I have railed against the system and argued with DH endlessly due to being unhappy and feeling alone out here. Time passes however and I see that as a family we have a better lifestyle here. DD2 will start nursery in the summer, and I will look for part-time work to give me back some of the lost identity I have being a SAHM.
Having made the move, the things that we are happy with here are:
the education on offer
cost of childcare
the quality of life (work-life balance is excellent)
friendliness of neighbours and their willingness to help us out
friends that the children have met
housing
nature and general space around us
cleanliness of the place where we live
accessibility of services/healthcare
In Sweden parents (either mums or dads) are home for typically 18 months when their kids are born. Then if a sibling is born, obviously home again for similar time, during which time kids under 7 are on reduced childcare hours. So there are many mums and young kids at home for great portions of the day which gives a lot of friends/contacts/support.
I think there are some down-sides to the supposed Scandinavian dream, but there are a great deal of good elements of it too.