Anyone tried DSPeaker 8033 DSP Subwoofer EQ?

DSPeaker Anti-Mode 8033 DSP Subwoofer Equalizer got great reviews in TAS and Stereophile. I can't move my huge Linn Melodik sub (WAF issues!) and I have a couple of room caused peaks I can't neutralize through sub controls and test CD / ear tuming.
Anyone tried this EQ device?
Ideas anyone?
Lots of comments and discussion here:
Great link for which many thanks! Almost more info than I wanted or needed!