Tinguinha, as you can tell from my signature, is my instructor. I own this video and have watched it a lot. If you're interested in Spider Guard, there is no better video on the market. Most of the other instructionals that even address spider guard do so only in passing or represent an incomplete picture.
Tinguinha does a good job of explaining to you how spider guard works, how to establish it, how to maintain it, when to use it, and some submissions and sweeps from the position (including his setups for getting these), and also how to pass the spider guard. The moves from the spider guard are predominantly presented in the form of a series (if the opponent does A, you do B, if C then do D.) I've worked these moves a lot and I can tell you that they definitely work in a tournament setting. If you're interested in playing spider guard, there is no better video on the market. I absolutely love his triangle setup.
Also, if you're interested in ordering it. Please buy it from
www.fightlife.com
Your money will be going towards helping the local BJJ community instead of some big martial arts video distributor like budovideos.