Revel Performa B15 Sub

Looking for opinions from owners or anyone who has heard one
dont be wastin yo wad pod dat box it aint wort it man
I heard it with its accompanying amp with salons, the revel center and surrounds. the source was the proceed PDMT, proceed pre-pro, and proceed HPA 2 and amp 3. The room had flat panel wall treatments, but no bass traps. I thought the bass was unacceptably boomy and muddy for such a high dollar system. This was at a dealer in Seattle.
I heard a pair with the Performa L/C/R and rears at CES. Perhaps the best HT demo I've heard. The bass was firm and full. Excellent.