Re: Tempting at this price?
The only real test for any of these candidate amplifiers is to plug into one and play.
The things that I especially like about the tc RH amp series are the built-in multi-band compression and Tube Tone for subtle overdrive. On the top models, the DI and Line Out possibilities are utterly professional.
The Staccato '51 model, in particular, aims for an Ampeg vibe. Why not check out actual Ampeg products? Mark Bass is another good maker.