Having owned the 2Cherry, which at the time sounded better than a number of other amps I had owned/auditioned...I would say that the Starkcrimison Stereo Ultra improves upon the 2Cherry in that it has both a more detailed and a more powerful low end.
At the end of the day, all we can do as enthusiasts is try products that seem to be getting a good buzz and see if they are compelling in our own systems...and then if so, decide whether to make a change.