I had the 1 Watt and could not wait to return it. Sounded VERY Solid State, almost.
If anything, buy a used Blackheart. Built with high trace PCBs, Amps are built for mods. Not the Blackstar which I've read, once it's gone, it's gone.
but that's low volume.
I STRONGLY suggest if you buy another Cab with a head, match with the same speakers. Or do a LOT of research. Running an Amp with bad speakers is like driving a car with bad/wrong tires. It's the speakers, not the Cab. (Unless it's particle board MDF, or open or closed back) And can you combine with another matching Cab, will the Ohms pair up from Amp?
Generally, go for speakers which are tried and tested, Celestion, WGS, Eminence, JBL, Weber. Don't get into smaller production lines of Celestion.
Buying an empty Cab and building with your own speakers can be VERY educational. You can combine speakers, too. I had a Crate V Series 2X12 which allowed me to combine two different WGS (Warehouse Guitar Speaker) speakers at 8 Ohms, or run separate singles at 16 Ohms. It was almost like having 3 Cabs in one. I built that for almost $300 and sold it for about same. I wanted to keep it, but for $365 I bought a used Tone Tubby 2X12 which retails $899. Quintessential boutique gear. Hemp speakers. Alnico & Ceramic. That's a whole other discussion.