If memory serves me correct, when this system was reviewed some time ago with a different subwoofer, the VP150 outperformed the M80s, but I think the reviewer was someone else. I could be wrong.
I actually will have to go against the grain here and disagree with the majority in this thread. I don't think that the top of the line axioms are a great value. I bought a full Epic 80 system that I found disappointing. I found the towers way too bright, and the bass too thin. Yes they were razor sharp, but to a fault. Also, the veneer is anything but robust, it damages very easily. I do enjoy their smallest bookshelves, M2s. I have 4 installed in a 7.2, and they perform very well in that capacity, even when now paired with high end towers. They calibrate easily, and produce high SPL, distortion free output. Even though I have replacements, I still haven't switched them yet. I have moved the M80s and VP150 to a smaller system with overstuffed furniture and carpets,and they sound a little better. I disagree that the VP150 struggle to keep up with the M80s. In the HT system, you have to set the crossover high anyway, to acommodate the sorrounds, and in this setting, the center holds its own.