Oops, I've missed a bit here.
Inter Arma is a brilliant episode, It's just a shame that the Section 31 arc that followed eventually fizzled in Extreme Measures. It's good to see Bashir put through the wringer in a similar way Sisko was in In The Pale Moonlight, and to watch how differently he handles things. He's grown so much from the first season, and it was a pleasure to watch.
Penumbra is a solid episode, but it's more or less just a lot of putting things into motion, which has played out more interestingly on other series. And of course, my favourite character has her own arc about getting it on with Worf. Why oh why? I understand them needing to confront their feelings, but just not in this icky way.
'Til Death Do Us Part is a better one. I really loved the Breen when I was younger, but purely on a superficial level. Not enough to get it on with them or anything mind. As a result I was a lot more wrapped up in their shenanigans then than I am these days. They're only there to advance the coming plot about Damar and the Cardassians.
Sisko and Kasidy unfortunately fall into the trappings of cliche Wedding stories, but I grew to like them so much as a couple of the course of the series that it didn't bother me so much.