Before I go on, I wanna say Ive never heard anything about them. That being said, it reminds me of the very small Bose lifestyle setups people rave about. My father in law has one, the nicer one, and my 3.1 system kicks it's ass for about 1/3 the price. I'd be wary of those speakers sounding that good.
I spent $400 on the two fronts, $200 on the center, and $500 on the sub, and I love it.
As far as a rcvr goes, I started with Sony, went to Onkyo, and now have a Denon. I'll only own Denon unless they give me a reason to stop. I've not heard Yamaha, and I like the Pioneer receivers.