I've had the original 5150, a 6505+, an original EVH 100w and now have the 50 watt Stealth. I also played the 50 watt EL34 and Iconic a handful of times.
The 50s is my fav of those. My understanding is that it sounds nearly identical to the V2 50 watt. Probably could have saved some $, oh well.
It has all the headroom and volume I'll ever need. Not too congested in the mids. Smooth gain like Soldanos I've had, tight enough and modern sounding for heavy chugging and singing leads. Great master volume and effects loop. An Okko Diablo in the clean channel works for Marshally crunch.
Talking to folks at the Dallas Guitar Show, it seemed to be a fav amongst many of the locals that get their mitts on the good stuff that runs thru the Dallas GC. Were talking Soldanos, Diezel, Bogner, Mesa, Friedman, etc. A few of them bought one. I did the same after having a few opportunities to compare it to some great amps. It has the same functionality as a Bogner 3534. The Bogner has better cleans and many different shades of gain, more versatile with quality tone. The 50s hits the tight gainy stuff the Bogner doesn't get to, but can't do the gorgeous cleans and crunchy stuff like the 3534.
In short, the EVH 50s (and V2 EVH 50) is a great bang for buck amp that covers cleans and higher gain, modern sounds just right. For a few more bills, way more amp than the Iconic.