love:
- very flexible
- price/no license costs
- community that creates great things - mostly for free
- community-suggestions are more often realized than in other engines
- lite-c

hate:
- some features are outdated - like WED
but i gues this is a result of the engine evolution - new engines dont have to handle legacies
- sometimes not reliable beacuse of bugs that are hard to find
- compromise between 'newbies' and 'pros' - but this is nowadays much better than in times of A5 oder A6
- hard to unterstand (or simply extreme buggy!?) collision-system - at least i havent unterstood all aspects yet, and im trying since 2003
- reputation of the '3D Gamestudio'