I've been a total Soldano junkie since I bought my SLO in 2005. It has been my main amp ever since. I currently also own a Hot Rod 25 (for smaller gigs) and an astroverb 16 1x12 combo. The clarity and 3D organic overdrive tone of a soldano has just become all I ever need. Some days, I like to travel really light and enjoy taking my astroverb to rehearsal. However, I play in a cover band and the astroverb is one channel. So, I recently bought a MINT GTO supercharger reissue to turn my astroverb into a two channel amp. I set the amp preamp around 5 for a nice crunch or clean (with volume rolled off) and then engage the GTO for my overdrive channel. Wow. I was completely floored by how nice this GTO sounds ....that very familiar liquid organic high gain tone I love on my SLO and HR25. Just really impressed, although I guess not too surprised as I'm used to being blown away by Soldano products. If you have ever thought about getting one of these to use into a tube amp that doesn't have a high gain channel,,,I'm recommending it. I'm used to my SLO and HR 25, and I'm telling you, the GTO and astroverb get me into that soldano "hairs on end and smile on my face" singing liquid gain tone. Any noise issue that some speak of with the original GTO pedals is non-existent with the new wall wart external power transformer. Hopefully, Mike and BAD will put out some awesome new soldano products going forward, but I'm going to always treasure and rely on my "handbuilt in Seattle" soldano gear.