My room is roughly 14' x 16.5' x 9.5 high. I have WP7 at the moment but am considering Maxx 2's. I just was emailing with Wilson today and they felt Maxx's would be "stellar" in my room so I do not think room size is an issue for you and neither does Wilson Audio.
In regards to the comment above about placement 5' off the backwall, I would strongly disagree. The way Wilson does/recommends setup, it is completely dependent on room. In my case, they fell only 1 ft from the backwall, aprox 2' from sidewall. This is not uncommon at all according to Wilson trained setup guys with many many years experience.
In regards to the comment above about placement 5' off the backwall, I would strongly disagree. The way Wilson does/recommends setup, it is completely dependent on room. In my case, they fell only 1 ft from the backwall, aprox 2' from sidewall. This is not uncommon at all according to Wilson trained setup guys with many many years experience.