I've been using Maraschino Kings in my big rig powering a pair of Avalon Opus for close to a year, a tough job that the Ms perform admirably. They do everything a great amp should do, imo.
I moved my NCore NC-400 from the big rig to my 10x12' office system after getting the Ms, where I liked the Hypex, but as I listen a lot in here using high-rez LaHave Mela speakers I wanted to get that same easy, clear, 3-d sound.
I participated in Tommy's fundraiser and chose to get a 48V STM. My office is small, so I don't need prodigious power as with my Avalons. I'm using it with a preamp, with the volume control wide open.
Today I got to hear it and it is just what I expected and hoped for - clear, natural, 3-d and with astounding bass depth, clarity and control.
One of the qualities I love with both these amps is the top end, which is pure, easy, and unforced, but very extended. The lack of hash allows the recorded ambience to come out of the shadows, so the 3-d illusion is very seductive.
The only minor caveat is that this is physically a very small amp, and there is not a lot of room for connectors. I use big Furutech spades on my speaker cables and I need to be careful they don't rotate a bit and short out. (See the picture in the post above) Banana plugs are a better choice for this amp for that reason. I've run into this issue with many small amps, so this is hardly anything new.
Another winner for Tommy, IMO, and a stunningly affordable high end amp.