I've watched 5 of the 6 Trek series to completion. With DS9 it didn't get interesting and gripping until it's 5th season around the time 'For The Uniform' and onward. I found it such a chore to sit through season 1-3. Too much of it was waiting around on the station and hoping something interesting would happen. The religious angle was annoying and boring, the Cardassians seemed like they had nothing better to do than fuck with the DS9 crew every other week, and the Dominion threat wasn't fully developed but constantly talked about as a reminder to what the plot of this show became after the religious mumbo jumbo didn't resonate after the first two seasons.