Sound, looks, quality, price, customer service.

NONE!

This center channel is usually $399, but I purchased them during a special sale AV123 was running for $199. Trust me, this speaker is worth much more than the $399 regular price. It is absolutely beautiful, the fit & finish is immaculate, the sound is amazing, and the price is about half of its closest competitor. Customer service is also top notch, the guys at AV123 genuinely care about your satisfaction with their product. I know its tough to purchase a speaker without getting to audition it first, but you cannot go wrong with the Rocket line.