re: Poker & Are Online Coaching Sites worth it?
The training site that's liely to be the best fit **for you** depends on you, the state of your game and your goals. As a simple example, if your main focus is to beat micro cash games, your best fit is one for which this area is also a focus, not one that is heavily weighted toward tournaments or high-stakes cash.
Another consideration is that big-name players may or may not be strong as instructors, or their particular teaching and playing styles may not fit very well with how you play and learn.
So, it's up to you to know what you want from training, and then to do the research to find out which sites are likely to fit.