It's uh... Let's be real, it's a mess.

A lot of the best DNA of Lexx lived on in Farscape, but Farscape is a far better show.

Is Lexx worth watching? Kinda, yeah. At least for a few episodes just to get the feel of it. The setting has a lot of nineties weirdness to it, and if nothing else the episode with Tim Curry is worth tracking the show down for (thankfully it's episode 2 or 3 IIRC), but go in with very low expectations and be prepared to drop it as soon as it starts to drag, which will be very quickly.