if you don't like dogs or kids, do NOT move to DB.
the"quality of life" for young kids and their mums is excellent in db. BUT DB's biggest drawback is the lack of school places (this is a problem all over HK, not limited to DB, by the way).
i lived in db for 6+ years, moved away 4 years ago and still miss it! it was so easy with the kids. everything in walking distance, playgrounds everywhere, clubhouses, swimming pools, various classes available etc. would move back in a heartbeat if "life" allowed it.