Many opinions here.

Mine are: I prefer the VP150 over the VP100, even if it isn't seamless. VP150 plays a bit louder and deeper. I've tried an M2 for center, and just didn't like it. Not enough low end and didn't seem loud enough, to me.

The off axis of the VP150 was never an issue to me since I normally sit near center anyway, so never noticed it.

https://docs.google.com/spreadsheet/ccc?...amp;usp=sharing