Given the late introduction of the character Ezri, the writers obviously felt it necessary to give her quite a few episodes this season. Because of that, it really feels like we've been focusing on her and nobody else for a while. I would be okay with that, because I love Ezri, but the episodes have generally been nothing special.
All the ingredients for a good episode are here, though. Nicole de Boer can carry an episode well and I just enjoy watching her performance. A great guest star is brought in for Joran with Leigh McClosky who is and intimidating and intelligent presence. There's an intriguing murder mystery and a really creative method of killing.
But put together here, it doesn't add up to a very good episode. It's slow and doesn't feel like it adds much to the show. There's a lot of wandering around and talking and pondering, and very little meat.
One thing that really stood out to me was the technology used in the rifle. The camera which can look anywhere on the station is pretty amazing, and since it's obviously a compact piece of equipment it makes no sense that the tech isn't used as standard for security cameras across the station/Starfleet (you could literally place it anywhere and monitor anything). Not to mention it's potential uses for spying and crime. The TR-116 rifle was prototyped for it's use of projectile bullets, not the targeting system, so if this sort of stuff exists it should have been used previously.