Now that's not to say I don' like some of their material, I really enjoy about 3 or 4 of their songs I've heard thus far.
Problem is, they have a very limited format. Lemmy can only hit about a 5 note range it seems, and the music is really recycled feeling. From that though you can pull some seriously good metal bass work, and some of the songs are really catchy. Even though all their songs are Ace Of Spades.
Not quite Ace Of Spades, but still pretty good.