There were enough individually good episodes that I'd say it's worth watching even with the cliffhanger ending...although, yes, the cliffhanger ending was frustrating. Gary was probably my favorite character of the group (Bill and Lee Rosen were quite good as well), with Brent Spiner being the best villain in the show and Anna and (iirc the name) Marcus a close second.

It's hard to describe, but while it had problems, it...came by the problems honestly, so to speak. You got the sense that the writers were by and large trying to write a good story, and occasionally fumbling the ball, rather than being deliberately trying to tear down things we love in the guise of storytelling.