I have always been impressed with the vox valvetronix line since they first came out about 15 years ago. Valve reactor technology is the best use of a single 12ax7 tube in a solid state amp yet. Marshall valve state pales in comparison, since there have been killer sounding solid state overdrive/distortion circuits for a long time now (99.9% of distortion pedals are 100% solid state). The real issue is simulating the breakup of a tube power stage. The Marshall mode 4 did it by using a 300w power section, so there was always clean headroom to allow the volume of a 100w tube amp cranked to saturation, but it was still 100% solid state/digital modeling.It is hard to get a good guitar sound with a bass--that is not synthetic sounding. The Vox I tried was like--wow!
The valvetronix has the tube feeding the power amp somehow, so a real tube breakup is achieved. So many just think it is just another tube preamp, but the preamp is infact 100% digital modeling.
I used to play with them at guitar center and Sam ash, but I never bought one back then. In 2002 or so my band played a famous local punk/rockabilly roadhouse we often played at, and unknown hinson was the headliner (he was not well known then, toured small venues), and he was using the biggest 2x12, pretty sure it was 100w in the first generation. It sounded great, and had a classic enough look to fit his image.
About 4 years ago I picked up a used vt40+ used for $100, and it is my main practice rig but it could cover a small gig or decent sized one miked up. My only complaint, no line out to slave, or ext jack for a cab, it is 60w, so with a bigger cab it could handle much more for sure.
I use it for headphone bass practice too, in this regard it is probably my most used amp


