5 or 6 years ago I ran one with an old rocktron Velocity120 poweramp & I loved it. I had a Savage years before that, and its definitely not the same, but its definitely still Engl. With the available switches you can get a pretty thick middy crunchy tone, down to a super tight scooped searing thing. The cleans are definitely useable. I don't remember getting very good crunch tones out of it with respect to running it in a 3-channel like setup, but thats OK.
Recently I picked up an e840 50/50 poweramp & my buddy stumbled on an e530 for 350 bucks (sam ash had it in the pro-audio section with no clue what it was, hah!) so I'm really looking forward to putting the two together and seeing how that rig sounds. I run an ax8 and I'm happy with it, but I'm betting that once I hear it I'll be REALLY tempted to find one for myself and leave it in the rack.