I use this in conjunction with a compressor for mastering (yes, there are still people mastering in analogue).
For the price you cannot really complain, you can cut and boost selectively in very fine detail. There are many EQ which cost many factors more, but I would hesitate to think that they are going to be much better.
The only thing I don't like about DBX boxes is that they don't have a power on/off button, so the unit is constantly on when the rack is powered up, and I can't see it costing much more to implement that. This is why it has lost a few stars from me.
Balanced connectors on the back is a big plus, usually limited to pro EQ models.
All in all don't really have any other bad things to say about the unit. At the end of the day it is far more organic than shifting virtual bars on your computer monitor and far more fun.
Highly Recommended