I've got a yamaha which looks similar to this
http://www.yamaha.com.au/products/avit/htsystems/YHT-175S.asp
Cant seem to find my exact one. My receiver looks 100% identical to the one in this package but is a HTR-6830. The centre speaker looks the same but my satellite speakers are taller, and my sub is a lot bigger. I think it cost me about the same $599 as quoted for this lot.
When we were buying, the wife and I had a massive fight in the shops. I wanted speakers that were furniture, she pretty much didnt want any but had to stop me whining. I didnt think that tiny speakers like that would sound anywhere near decent. The guy in the shop was on her side saying we didnt need bigger.. which made me more against the small ones because I figured he was going along with the wife just so he would make a sale. Surprisingly though, they do sound pretty good. I think the average person would be 100% happy. I'm happy too 98% of the time, I just think they could be better when listening to accoustic music.
Watching movies though, the floor shakes, you get the whole surround experience. Plenty of times I've looked out the front door wondering what was going on outside, or got up to answer the phone when it was just rear speakers.
Only real issue I have is that they arent massive glossy black beautiful things.