Even if the V20 has since dropped down in price since its release, so has the X5-III. Comparing a $700-800 device with one half as much, while calling the latter overpriced junk, is a little silly. I wouldn't praise my X5-III as perfect and most posts lately are hardly praising the device. You seem a little hurt that someone that isn't you is enjoying something you didn't. For every vocal post that's negative that means a hundred people had no issues.
I've been happy as of late using a mix of listening to foobar2000 (it might downsample but it doesn't butcher playback of higher resolution files like PowerAmp did for me) and FiiO music along with my E12A.
Had an amazing session with my friend across the country (who listens on a Pioneer XDP-300R balanced connection to HD700) just a few nights ago, and I don't feel like I'm being left in the dust sonically. We listened to Tristeza - (Dream Signals In Full Circles:
https://www.youtube.com/playlist?list=PLcCJDfsA8fzOs2FIWyAvcL8s0qpaPCxwq).