Bought this pedal because of the Jackson Audio advertisement and out of curiosity how good can such an amazing design pedal sound. First impression is the pedal itself is pretty heavy. Wonder why JA made it from steel, when original amp chassis is from aluminum, which would be closer to original and cheaper for sure (4 of 5 stars). It would also get old the same way as the original amp. After switching it on I was surpised how musical and insipring the pedal sounds. Think amp sounding pedal. Tone stack doesn't react so intensively, in comparison with other pedals. On the other hand, any sound you turn in sounds really good. I have played it with 52 RI Telecaster through tweed Champ and Deluxe, with amazing results.
Read some negative opinions on JA quality, so I was curious if this would be the case. Unfortunatelly it was also this case. After two days of testing I noticed ~0.5 sec delay between switching the pedal and distorted sound sound. I don't think it's the switch itself, rather some issue with charge pump circuit vs pedal circuit itself.
This and ss chassis (instead of aluminium) are the main reasons I have returned the pedal. Othewise I would keep it and the ~300Euro price tag would be perfectly reasonable for the piece of history pedal.