What Gadough said. I have no issues at all with the difficulty, I'm doing just fine. I was having more fun with the heroics before Blizzard nerfed everything and gave everyone automatic 15% stat/health buffs upon entry, actually, you can practically Wrath (yes it's a verb now) things now. But it got boring fast, there's not enough heroics, Tol Barad is lame as hell, the game has become excruciatingly dull and I can't even have fun just rolling another alt because the magic is gone and there's no "world" in World of Warcraft with everything so streamlined. Blame nostalgia or whatever, but the point is, I'm not enjoying myself anymore, and neither were my many, many friends who have quit (who were all very capable players).
Rift, though. Rift is amazing. Sure, it's a WoW clone, but it harks back to a time before WoW started to neuter itself. And there's much, much more customization in regards to classes, specializations and variety when compared to the watered down cookie cutter shit classes and talent trees that were handed to us in Cataclysm. The game took the best aspects of WoW, improved upon them where they could, and cut out most of the shit. I'm interested to see where Rift goes from here -- it's obvious to see that, unlike AION, Warhammer and the like, it hasn't immediately fallen flat on its face. It won't be the WoW killer -- I doubt anything will have that potential for a long, long time -- but it does have the potential to be very successful.