I've got an ENP7660 in hands right now. Its not the modded one from Geeek, but the original one directly from Enhance factory.
First impressions: it seems an awesome psu, staying pretty silent most of the time. It only starts getting loud from 480w load on, which we were not able to reach yet with our hardware. Being 600w 80+ platinum in less than 0,5L volume, this is probably the best flex atx psu available on the market. Nothing weird to report at the moment.
PS: I will make a proper review about it in a couple weeks. Our team is working directly with Enhance, so we are expecting to offer a custom version of it, with black enclosure and cables, and custom fan if necessary.
Also, if someone owns a Geeek's 600w unit, I would really appreciate some impressions, so we can compare it with the original one.
Any news I'll let u guys know