I was going to buy the D15 but the store not only had none in stock with none on order, but they wanted $145 for it! The Nepton cost $120? Kind of an easy choice to make. Performance wise it's great despite the inability to get full use out of the fans. It comes with a 5 year warranty to boot, not marked on the box (fools). The Nepton 280 I just picked up is doing very well despite not being able to use the provided fans effectively, although they are some of the loudest around (as expressed in reviews) though I have not had to hear at full speed yet and even the one I can use is barely audible. AMD recently expanded their inclusion of their new AMD Wraith cooling solution to the FX 8350 and the FX 6350. The EVO has a larger cooling area and larger fan. Honestly anything will less than 3 years warranty should be disregarded in my opinion, and even a minimum 5 year warranty should be sought after. It is important for people to understand that the C7 is not meant to be competitive with a tower cooler. Maybe a couple dozen that are made by reputable brands that come with a good warranty, the ladder being even harder to come by. Looking at the C7 and the C7 Cu, it looks like both are sold out on Newegg. I'm sorry, but I don't think there are 'Hundreds' to choose from. Im trying to get a good air cooler for my CPU (planning on transferring my old stuff into a Fractal Node case, super small form factor) and the C7 was recommended to me many moons ago.

Slightly better, but a little wider, the Reeven Justice ( Hardocp reviewed it and showed it as one of the best bang for the buck 120mm coolers).

On an overclocked 4790K operating at around 4.6GHz the H115i will be roughly 8. A classic example would be a Coolermaster Hyper 212 EVO. 'With literally hundreds of AIO liquid coolers to choose from' It really depends but I would say over a Hyper 212 with something like the H115i would be a considerable upgrade.

Cryorig c7 vs cm hyper 212 evo