it's a love/hate relationsship... I hate it when there's a super cool item I can't use if I change that one piece, but that's also the fun of it. The everlasting gear-puzzle
I'm all in favor for no class requirements, sice you have all the freedom you want to equip anything you like... So even though you're a spellcaster you can wear bigass amor if you're willing to sacrifice points or +stats gear elsewhere. Better options for different playstyles...