Except the 2 set bonuses has nothing to do with ambush
The 2 set bonus enables a 2 boost to turn rate all the time regardless of ambush
Except, it actually does have everything to do with ambush. You gain turn rate in cloak, and the two piece set allows you to keep that increase in turn rate while ambush is active ON TOP of the two increase all the time.
The Scimitar can't tank like a Fed cruiser but I have no trouble standing up to a Tac cube if my abilities are off cooldown. Core breaches mess this ship up bad though, thats for sure.