I don't really know how long I've had mine...6 years, maybe. But the first one I had was in 2015. It's my all time favorite amp. I've had all the 50 watt iterations and the 100S and 100 6l6. I do not agree that it responds the same as the 50 watt. The bigger size, wattage, and price all come with a bigger and ballsier tone than the 50 watts are capable...and I do still have a 50S (that my son uses) and a 50 6l6 (that stays at one of my practice spots). It's the only amp I have at home right now for recording, and the only amp I've taken on stage since selling my Mark VII. It is enormous, which can be inconvenient, but I'm usually rolling it around on top of a Mesa OS cab with Karnivores anyway, so I don't really care too much. I also don't agree with the plasticy tone comments, though I'm not even sure what that means.
For me, the amp has depth and weight to each note that I haven't experienced from many other amps. But I'm also a person that has a hard time playing something that isn't a 5150. I don't like rectos, I don't like the Iconic, I don't like Marshalls. I do like Mark series amps, but not as much as the 100S because the low end on a Mark is significantly less big.
Also, you can absolutely dial in a clean tone on the green channel. Keep the gain super low, and it's easy to get something clean out of it. I use that channel to record cleans and play clean passages with my bands every practice and show.
Anyway...yeah, I love it.