I love the first three albums. I think I recall reading the departure of their bassist resulted in their sudden decline.
Lenny Kravitz. Can't help it, high school memories.
The first three albums are excellent. I bought the recent 2-disc bonus versions of these albums. There's some good live tracks among the bonus material. Funny you mention the bass player since that's one of the main reasons I keep coming back to these albums. The bass lines are wicked good!