I looked into NoteCaddy, but I don't think it's worth $50. I can't see it being detrimental to your poker. I'm a bit slack with detailed note taking, mainly because I didn't see the point at 2nl, a tag saying "fish" was usually enough, but at 5nl I think it's time to get a little more serious about it. I think I'd prefer to improve my own note taking rather than purchase a programme to do it for me, but I think these notes that NoteCaddy provide are more than sufficient for the micros, and can be a useful platform for more detailed note taking at the higher stakes.