From experience. The 650 D is a big case, easy to work in, with good cable routing facilities, plenty of room for large GPUs, pretty well made and mainly tool less. On the negative side there are known (but fixable) issues with the fan controller and fan noise (check this out on this and other forums); if you want to use the front USB 3 sockets you have to connect these to the rear USB 3 sockets thereby using them up as there is nothing provided to connect to the MB header (Bitfenix make an internal adapter but I can't find anyone who has one); the case comes with no user guide at all so if this is your 1st build you may be in for an interesting time. But, having said that, I bought one and I'm about 95% happy with it. Good luck!