I got this PSU for my first computer build. Having researched for several days on which power supply I would need, I decided to get a modular. Mightyape had the best price at the time of purchase and I couldn't be happier.
I have had no issues with this PSU at all, and is very easy to install. I had a hard time finding reviews on this exact model on Youtube, so I was going out on a whim by buying something that I didn't know would be good. I was wrong, this PSU is phenomenal and feeds my R9 280× just fine.
I highly recommend this PSU if you are looking for modular and in this Wattage.