Up until now, the stuff I've heard about the Essentials didn't worry me at all. Classes built differently? That's cool. Magic item rarities? I can work with that. The recently revealed changes? Well...they've given me pause. I mean, the team over at WotC has done an excellent job with 4th Edition thus far, so I'm willing to give the whole thing the benefit of the doubt, but some of the changes are starting to get me a bit worried in the way that only a fuck-ton of changes can.