Built the PC a couple of months ago in Feb 2016 and has been working great.
I moved the stock 120mm fan from the front of the case to the rear for exhaust and put the two 140mm in the front as intakes. I also removed the HDD tray for better airflow and just hid the single SSD in the empty 5 1/4 inch trays.
Had an issue with the R9 390 at first, was only getting a black screen after installing the drivers for it. Thought the 550W PSU was the problem, as I'd heard that it would be under powered. Turned out to be a DOA card and after getting it replaced i haven't had any problems since, even after heavy gaming sessions so I'm glad the PSU is holding up.
Overall I"m very happy with how it has turned out. Its the first time I've been able to play the latest AAA games at Ultra settings 60fps.
Only regret I have is not future proofing enough.