amazing series really. CLAMPs best work. I just wish Toya got more screen time, I think he's a fascinating character with an adorable sister complex. I also really like the idea of the cards, the guardians, and Clow. (CLAMP really needs to make a series revolving around Clow, seeing all the fiddling he did in his lifetime according to xxxHolic and Tsubasa (imagine how many girls he fucked to have that many offspring in that many dimensions...))
My only complaints about the anime are
a) Still no capture or use of the Through or Libra cards...
b) They didn't handle the epilouge well at all. I much prefer the manga ending to the anime ending (although the anime ending sets up movie 2, which is a great movie).