Splawn user and fanboy here.
Absolutely love my 2015 B+ Quick Rod and 1st year Pro Mod 50.
These amps are kind of the opposite of the Friedmans. Open, Super raw, very upper mid focused. They don't have that 3d sound and feel that the Friedman does, but they have the fastest and punchiest attack out of any amp I've ever owned or played.
They are loud, and meant to be played loud any way you spin it. They can definitely sound good at lower volumes, but they truly shine at a loud band volume, much like a 2203/2204.
They can be a bit stiff and unforgiving for some. They will expose your playing unlike any other amp. I find them to be even stiffer than a lot of VHT/Fryette offerings, and that is usually what turns people off of them, but it's what I love about them. They force you to dig in and really focus on hitting each note accurately, and when you do, you are rewarded greatly.