Preview time!
http://www.startrek.com/article/first-look-changs-bird-of-prey-attack-wing-wave-9
It's... well, as a few posters in other places have stated, if the Borg didn't exist, it would be a great expansion. If ships did not exist that could throw 6+ attack dice in a 360 with converts... it would be a good expansion.
I don't quite understand why the Advanced Cloaking Device is good for ONLY Chang's Bird of Prey... the other Bird's of Prey aren't actually Bird's of Prey! They are B'Rel and K'Vort class ships. This is the only "Bird of Prey" class ship, despite the other two being the same model, same stats... OK, the K'Vort is a little bit bigger (5 hull), but...
Azetbur has the ability to break the Weyoun/Veral combo.
Cry Havoc is probably the best card in this set. The Games Afoot could be useful... but not sure it's worth a 5 pt Elite Talent.
In a ship pure/faction pure setting, it's not a bad set. In everything goes, it's kinda "meh". Still, if I could "aquire" a
Ch'Tang, I'd love to field a fleet of Birds of Prey.