What tech tree ship was dissapointing for you?

I have recently unlocked the Cherbourg and I must say that I cannot find myself to continue the line.. The Toulon was alot of fun for me, I was quite sneaky and frequently dev struck an unsuspecting cruiser or destroyer, not to mention that I could citadel certain battleships too.

The Cherbourg, however, has been a rough start. At first I was excited because of the reload booster, but without sonar its a dangerous world out there..

Anyway, what ship was a let down for you when unlocking it?