I admit that I mostly watched Lexx for Xenia Seeberg. However, it really grew on me. Kai, for example, is one of the ultimate badass characters I've seen on TV.
The finale seemed rushed, to me. The series has been languidly paced all through its run, and then it just sorta suddenly ended. I guess some of the things that happened were inevitable, like...
SPOILER ALERT
.
...blowing up the Earth...
.
END SPOILER ALERT
...but it seemed like they had been going in another direction and then just kinda did it as a spur-of-the-moment "well we gotta wrap things up" ending.
Very bizarre, but very fun, show. It'll probably gain in cult status over the years.