I have this setup, and was using it on my 2K Olds Bravada and really liked it, fairly easy to use.
Just wanted to see if anybody has used it or is currently using it, ive had it since they releashed it a few years back and now to get it you havbe to go thru JET, they call is DST tuner or something like that.
Heres a link to a forum for both the TC tuner and JET DST tuner, along with a MX Scan scanner setup that uses the same cable as the TC tuner. Im using autotap now, but having to switch back and forth in the cables is a hassle, and with MX Scan you can datalog and put the datalog into the tuner and it helps you tune.
Monodax Homepage - TunerCat OBDII Scanner and Data Logger - MXScan Info-
just click on the forums link on the right.