After owning a 101 Mini (non-reverb), I really didn't think any of the voices/patches sounded like any specific amp, except for the surf voice indeed being somewhat similar to a BF/SF Fender, which I verified by A/B'ing against the actual amps that I owned.Let's face it. When they market something as "US", or "UK", that's just marketing. Sure, they are attempting via design engineering to have it sound in the ballpark of the reference amps, but it really has its own sound. "UK" could be a marketing claim for sounding like Orange, Vox, and Marshall, all British brands, take your pick, with the actual sound being not very close in actuality to any of the 3.
These are full analog preamps in the Quilter stuff, and as such, I just don't think it's a realistic expectation for them to come really close to the tube equivalent.
IME, it's possible to make a SS preamp circuit sound tube-like, warm, or maybe even saggy, but it's not really going to nail any actual tube amp.