My own experience after many years on a strata council is that most owners are fine people but often too passive about participating in the business of the condo, which requires some knowledge of the legislation. The odd bad apple does not usually stay very long, and they can be contained with knowledge of the rules and regulations, both provincial and the condo bylaws.. This is in a mixed busy but low crime neighbourhood not far from downtown. 
It is a myth that condo fees are too high. Single family houses also need repairs, at a very high cost. Of course owners of single family houses have the option to let their place rot.