I have just started season 3 of a complete run-through. I never watched this show in first run, the only episode I ever watched was the tribble episode because I wanted to see how they merged the characters into the TOS episode. I love this show, it is easily my favorite of all the Star Trek series. (I have watched TOS, TNG, Voyager, and Enterprise, but for some reason just skipped over DS9...what a mistake) It is the one series where there is a real focus - all the politics surrounding the Bajorans and Cardassians, plus the Dominion threat - not just traipsing around the galaxy running into the alien of the week. (although Voyager did have the main arc of "getting home", but it was still mostly very episodic) Having the action take place on a stationary space station is conducive to this. I think the cast is great, I like them all. but Odo, he's my favorite. Amazing character. I watch an episode a night, and look forward to the rest of the series.