My room is 12x17, with the couch 3 feet off the back wall. I have the Lorelei's also about 3' off the front wall. As Popsyr said, these things are amazing. Image is huge, detail, well, we've been through it all before. And, a bonus, they kick ass for theater. I don't have my nemesis yet but reports are it blends very well as a center with the Lorelei's. I'm using Polk f/x 500i surrounds and RT25i rear speakers. No issues at all!
I agree, if you can swing it, jump on the Lorelei. Where else can you get $6000 worth of speaker for <$3k?
Popsyr, glad to hear the comparison to the C-9's, I'm a dealer for energy and Polk and was considering something in the LSi, either 15 or 25 or the C7 or C9 but just didn't think they could keep up with the Lorelei. Glad to hear I was right!