I have mixed feelings on this sound system because it deserves two different kinds of rating.First of all I want to say this: in all fairness, some people rate this lower than they should because they are using it for a home theater system. That's nonsense. The fact is, this is a sound system for a computer or videogame set up. As such, it is one of, if not THE best on the market. That has caused some people to use it for their home theater, which is understandable and doable for a cheap way out, but you should not expect the ultra highs and lows of a real home theater sound system. I have an expensive home theater system in my living room, but I don't even think about comparing this to that quality of sound. It's not fair, this entire system – amplifier and speakers – is only 350 bucks; come on now! Twice that wouldn't buy one of the subwoofers for my system, or the amplifier by itself. For the money you can't beat this sound system.When it comes to the sound this speaker system produces, it is absolutely phenomenal. I mean, I'm hearing background noises, echoes, reverberation in castles and dungeons, and deeper base in explosions than I ever heard before in games, and I thought I had a decent sound system before. Modded Skyrim sounds amazing, like you are right there, and other games have an appreciable realistic sound. The high-end over 15,000 Hz is a bit weak, so Logitech should make some improvements in the tweeters in the next rendition. Otherwise, the speakers are of a very good design and weight, and I like that all five satellites are the same.The AC 3 sound circuitry has good separation, and I highly recommend people use the optical cable. If you don't have one, get one, it's worth it. BTW, Logitech should include one, but they don't. I thought that was a bit cheap on their part. The speaker wire gauge is OK, but a bit thin, so you might want to replace that. It was smart of them to include longer cables for the rear. I'm only using their cables for the front three, but my rear speakers are farther away so I use a thicker gauge. Logitech did well by letting it be a standard connector on both ends, rather than RCA plugs, so you can easily swap it out.What about system design?Part of it is good, like the separate unit for adjusting sound for each speaker and the nice, long attachment cable so you can locate it anywhere. Part of it is downright stupid.Logitech, you screwed up by not putting an exterior heatsink on the amplifier. You had one on the previous version of this sound system and should've kept it. The amplifier is inside the sub woofer, and it gets hot, real hot, even when you're NOT playing music or games. There's no reason for that, it should back down. Heat is the worst enemy of electronic circuits, and that means the heat inside the subwoofer box builds up because there's no ventilation. None can be added without screwing up the sound qualities of the sub. The ducted port does not count because heat cannot escape from it. Whoever suggested this in the design committee should be moved to the mailroom. I use my computer for work and play, thus I have to shut the sound system off during the day because the stupid thing gets so hot. For this price, I know Logitech is not using the high-quality Japanese capacitors that can take more heat, which means the amp will most likely have a short life span if used a lot.Conclusion: if you want a great sound system for computer or videogame set up, you cannot do any better. You can also turn the sub woofer on its face and cook eggs on the back plate. Nevertheless, my games sound fantastic, and that's what I bought this for.For sound I give this system five stars.For design I give it three starsIt only deserves four stars at best.I'm giving it five stars to offset the unfair people who are down-rating it it as a home theater system.