I am also interested in knowing if the videos are really helpful.. is it worth the money? PingSkills also offers separate videos for serve and receive.. I think that is more interesting than FH or BH loop. Anybody tried those? Comments?
Well, "helpful" is a subjective word. It depends on what your game is lacking and whether you have determination to practice the lessons in the videos. If you find serve and serve receive more interesting that the loops, it's probably because those are the part of your game that needs immediate improvement.
As far as I know, there are two serving videos: Pingskill's and TabletennisMaster's. Both focus upon the mechanics of each serve. They are ok if you want to learn new serves. But both don't go beyond that, ie, how to set up your serves for attack, what to expect from each serve variation. In short, you need serving strategy. Brian Pace is currently working on his serve and serve receive videos. I'm lucky to have part 1 before it's released to the public. I must say that his video is an eye opener: he doesn't focus much on "how" to serve but points out important bits of info that are missing from other serve videos such as the height of ball contact, the quadrant of table that the ball must fall to get short/long serves. His video is systematic. You know the why and how to utilize the serves in your game.
I would recommend that you buy Pingskill's and Brian's videos. Both complement each other. (I did buy ALL Brian's, TabletennisMaster's and Pingskill's, haha)