Eh, it's a Kazon Predator with 1 more hull. Not bad, but not thrilling either. I think 4 attacks is very generous considering the Excelsior from 130 years later only had a 3. Don't even get me started on the poor D'Deridex. Escape pod has some possibilities, but I don't like things that require my ship to be destroyed to work

The weapon could be neat, but will require planning.
My big beef is that the Captain, Talent, and Crew should only be usable on the Aquatic ship. I don't think there is room to install fish tanks all over the other ships for these guys

The Xindi should be a lot like the Dominion, all one faction but with a lot of species restrictions.
I may be a little bias, I have no love for the Xindi