Anyone have any experience with the Adire Rava Sub

I'm considering adding one of these Adire Rave subwoofers to my system to add a little bottom end to my monitors. Does anyone have any experience with them? Are they quick, musical subs or are the more boomy home theater bass?

Any feedback would be appreciated.
I used a Rava with my Soliloquy 5.3 floorstanders.
It blended perfectly with the Soliloquy's, as though the bass was coming from the speakers themselves. It can shake the house if you like, but I bought it (and enjoyed it) specifically because it was more musical than boomy. I highly recommend it. Hope that helps.
Thanks a lot. I appreciate it.