re: Poker & StoxPoker Training
Well they basically have two types of videos - the in-game videos, and the classroom videos.
Classroom vids are just that - they teach you concepts and strategies in the form of powerpoint presentations. These have by far been the most helpful for me.
In-game vids are their pros playing either their normal stakes, or dropping down and showing how to play certain stakes etc. Also very helpful seeing through the eyes of a pro and seeing exactly how they use certain stats, or some of their opponents' tendencies to their advantage.
They used to be mostly 6-max FLHE vids (stoxtrader's specialty), but they've added new pros that specialize in all different kinds of games (6m NLHE, HU NLHE, HU FLHE, razz, OH, laggier players, MTT players, STT players etc etc).
Most of the emphasis is still on 6mFL/NLHE, but it's all stuff you can apply to full ring still.
In short I'd just say get the sub if you can afford it and aren't looking for something specific like shorthanded 7stud8 or 5 card draw