I’ll admit when schema builder came out, I messed with it some and then put it back up. It’s been a while, but I recently tried it out again and was very impressed with how fluid it is and the functionality available. I built a 5 object data model each with a few fields, calculations, relationships, in no time. I actually really enjoyed it and will be using it moving forward instead of the standard interface or using eclipse.
Maybe I’m late to the game, but at least I made it!