My (first) amp is a Fender Mustang II v.2 (dabbled a bit with others like George Dennis "The Blue" in the meantime).
For better results, it would be better to use a laptop with the Fender FUSE software, in order to customize the sound to your tastes, the defaults are rather mediocre.
These solid state amps are quite useful: light, low power consumption, fast start-up, no maintenance needed. Tube amps are idiosyncratic animals and more higher maintenance, and you need to drive them hard in order to enjoy their warm sounds - in low volumes they lose much of their shine, while SS amps don't suffer as much in bedroom levels.
Its closed back construction is especially useful when practising in low volumes, as you can keep music/noise from filling whole apartments and be more focused.
The Mustang III is open back and a quite different beast, while it offers a more complete control via LCD screen and menus compared to its smaller brethren.
I have not heard good things about the Mustang GT series in high power settings (but the default profiles are claimed to be quite good).
I am leaning towards the BOSS Katana (either the 100W combo or the 100W head, which also has its own speaker, so you can leave the THR amps out on portability). The 50 Watt Katana model is good enough, but it doesn't offer all the physical buttons for playing with the channels as its bigger brethren, and the speaker is smaller.
Cheers,
N.F.