I have Elrogs I bought about 4 months ago and I love them too, but they sound better in my Thoress mono blocks than they do in the Melody 845 integrated I also own. Not bad in the Melody, but I think I actually prefer the regular 845a's in that--the Elrogs and Shuguang 845bs kind of sound a little too forward to me in the Melody.
The Elrogs are the best sounding 845s I own (including the Melody branded ones) in my Thoress by a good margin. Very, very nuanced relatively speaking, and the other 3 sets all sound very good already. Better microdynamics and finesse, but still ballsy when they need to be. I suppose they should be at $1800 a pair or whatever they cost.
I, of course, hope they last. I probably only have 150 hours on them so far.