I have one of the newer versions. It's not on my board, but every time that I think of selling it, I play it and just can't. It is seemingly endlessly tweakable, and capable of so many sounds. Plus, it has the best down sweep that I've ever used. It does track well, and it get's along with other pedals too. However, I agree with Marcury; it can get buried in a mix very easily.
For what it's worth, I think $180 for the older version is too much. You could probably find a newer one in the TB classifieds for that much, or maybe even a little less.
3Leaf Audio Club #93; Source Audio Sourcerers Society #134; Squier VM Bass VI #3