I have a runt 50 with matching 2x12 cab and I absolutely love the tones I am getting. I sold my Mesa Boogie Jp2c and replaced it with the runt (I have been a mark series guy for ten years). My band plays in drop B and with an od in front of the Runt it does heavy just fine and still retains clarity. My Runt was purchased new July of 2017.
No regrets on selling the Jp2c, I have had quite a few high end/dollar "metal" amps, Uberschall, driftwood purple nightmare, peters halo/hydra, diezel Einstein, Mark Iv, Recto multiwatt and more.