I bought this as a replacement/upgrade and was not disappointed. Boots up fast, video card is great, and the fans are very quiet. I read other people's issues and had bought a spare wireless adapter and extra fans, anticipating issues. So far I have been fortunate in that there was no major problems. I did have an initial scare when inspecting to make sure everything was plugged in; I had no idea that the SSD was this tiny stick flush against the motherboard and panicked when I thought they 'forgot' to include it. Of course, it booted windows fine indicating the SSD was in fact present.While I was able to install a fan in the bottom of the case to 'suck' in cold air, the liquid cooling system's fan doesn't leave room to add an exhaust fan in the top grate. The tempered glass itself can get rather warm from extended use, ventilation seems poor. You may want to just make do with a bit more noise for the sake of cooling by turning up fan speed in the BIOS. I had no problem with the wifi but dont forget to actually screw in the little antenna it comes with because that made a huge difference in reception. Overall a good computer that you might want to baby a bit just to get good life out of the mobo and GPU.