I ordered carpet tiles a couple of weeks ago for my living room/media room. I installed hardwood so I needed something to go over that like a rug. I debated on a wool rug or the carpet tile. I decided to go with the carpet tile because of my budget limitation. The carpet tile "rug" I put down looks really good (wife likes it too).
I can hear an amazing difference from just having hardwood to having the carpet tile. I have a B&W 5.1 system with a Pioneer Elite receiver. I listen to as much music and I watch movies. I pretty damn satisfied with myself.
I bought my carpet from www.focusfloors.com
. I ordered a sample first then ordered the tile. Seemed to be nice people when I called to work out shipping.