Any owners of the General Tools EZ Pro mortise/tenon jig?

[Michael Weber]

I just purchased one and it arrived today. I've been playing with it and it does a decent job. I do perceive a few weaknesses with it, specifically adjusting the wood in the jig (both vertically and horizontally) and wonder if anyone else has dealt with this issue or others for this jig and what you did to improve the setup method. Here's a link to the jig in question. http://www.generaltools.com/870--EZ-PRO-MORTISE-AND-TENON-JIG_p_1295.html
Thanks, Mike Oh yeah, anyone devise a dust collection method?