I'm told the Room Perfect in the Lyngdorf makes setting up 4 subs much easier, but I've heard that crap before... time will tell.
I'm sure it would. You can't fix a standing wave cancellation using room correction. The correction will tell the amp to make more power at the cancellation frequency- and the result is that you could put 1000 Watts into that cancellation and still have a bass problem. With a distributed bass array the standing wave is broken up- allowing the room correction to work properly.