Sound — 10
I play a variety of styles, my PRS Custom 24 Dave Navarro sounds unbelievable through, as does my Schecter 7 string, the clean channels on this (the presets, nevermind the ability to customise your own) sound like nothing I've ever heard before. It's simply beautiful. The variety is endless, even 13 years after the amp was originally launched, it's still better than 99% of products out there for sheer robustness and variety. The distorted channels, especially the Mesa Boogie Dual Rec model sound brutal, sustains for days on end!
Overall Impression — 10
I play mainly rock music but sometimes dabble in Blues and Jazz, this amp can do it all easily. I've been playing guitar for 12 years, have gone through countless amps, including a Line 6 Spider, which, ironically... Line 6 later bought DigiTech, the company who branded Johnson, but ended up making much poorer quality amplifiers than this. I also have a Peavey Vypyr 15 watt that I take with me when I'm travelling to work (I work in england and live in Scotland) but that's obviously not comparable to this. If this amp was lost or stolen, I would do my utmost to get it again, these are a rare find and I was lucky to get it at such a brilliant price seeing as they were 1200+ when brand new.
Reliability & Durability — 9
I've only had this amp for a short period of time, so I can't REALLY comment on the reliability. The previous owner had the tubes replaced as well right before I bought it, so it's not skipped a beat in my ownership. I would Imagine the amp would be perfect for playing Live, plenty loud enough as well as more variety than any other amp/modeller I've ever seen (think of it as an earlier Axe FX II and you're on the right track). Not much else to say on this really, the foot controller is nice and sturdy too with clear switches for people with lead feet!
Features — 10
This is the worlds first guitar modelling amplifier. It has more features than I can even begin to imagine, it models some of the most famous amps in the world and it does it brilliantly. The amp comes with a footswitch which is completely customisable and easy to use along with a pedal that can be matched to whatever effect you require, IE use it as a standard wah wah pedal, or use it as pedal for lowering volume, turning on chorus etc etc etc. I use this amp in my home, not for gigging, but I Imagine it would be fine for gigging. 150watt, 2 x 12, tube integrated!