I've it and I think it's a very good bass comp (comparing price to quality); if you get it used (but working) you could make a great deal!

Probably it slightly colour your sound in the tubesim mod (or also in the mb mod with extreme setting of the inner trimmer), but it's a "good" colour (IMHO).
In contrast with someone may think, despiute it's a pedal and not a rack unit I've found it working much better in the loop effect of your head (mine is an Aguilar AG500sc): probably the lateral switch "Active-Passive" could be bettere redefined "Loop use-Serial use"
Obviously if you want the best you should get a DBX 160A or a UREI, but I think that if you're not a pro or if you haven't a great studio activity, you could probably waste your money.
Good Luck!