Yeah I played, but I didn't really like it quite as much as the Red Alert or Tiberium games.
Generals didn't really seem like part of the C&C series to me, just a modern-style RTS with the C&C nameplate. I will admit, however, that I did have fun playing. The units weren't quite as unique or interesting as the earlier ones, but the GLA's mob was quite fun anyway (AK-47s for everyone!). And hey, 3-D was a good jump too.
By the way, (I'm sure, as a C&C fan, you've already heard... but I'll say it anyway) there's a new C&C out, "Tiberium wars." By all reports it's a solid return to the original story (however if you can't run Generals you're definitely out of luck with this one).