Being a werewolf. Fun in theory, and in practice, it is somewhat.

However, flaws deem it pretty much useless. I use it purely for quick transport.

You can't really transform while in combat. By the time the transformation is complete, you have been killed.

You can't seem to open many doors. Steam rolling your way through a bandit occupied fort is therefore out of the question.

You cannot cancel it at will. If everything's dead, I find myself sitting there impatiently tapping my foot as I wait for it to wear off. There are people to loot and treasures to take.

Anyone else agree with me here?

Quick transformation, the ability to open doors, and the opportunity to transform back at will, and I would consider using it as a means of combat.

The way I see it, it is as described in the title.

Flawed to the point of being useless.