from the interview w/annette in the current cardplayer:
Did you use any tools to improve your game?
AO: I don't use Poker Tracker and stuff like that. I am a member of all of the training sites, and I've watched all of the videos. I also go through my own hand history, but that's about it. I've read a few books, but I don't believe that they've helped me too much. Harrington on Hold'em is all right, I guess, but I'm just not that interested in the math involved in the game. I play mostly by feel, and I don't really care if I have the pot odds to call. I don't call much, anyways (laughing).
Was it a conscious decision to focus on no-limit tournaments rather than pot-limit cash or other limit games?
AO: It just happened that way. I started playing tournaments and never did anything else. I tried to play cash games, but I didn't have any success. Besides, I find cash games online kind of boring.
http://www.cardplayer.com/magazine/article/17101