Roland amps: Cube Street, left; AC 33, right.
Having joined the dark side as a gearhead, I have recently upgraded my uke amp. What I had before was Roland's Street Cube, a small modeling amp designed for electric instruments. Has EFX for things like echo, flange, and other distortions. The new amp, the AC 33, is designed for acoustic instruments, and doesn't have that stuff.
Since the uke is acoustic with a pick-up, the dedicated-acoustic amp is a better choice. I don't need the other stuff.
If you look at them side by side, you might think the Street Cube is louder and more robust, and it is built sturdier, with a grill and heavy plastic bumpers, since it was designed for street busking and being knocked around. The speakers look to be the same size, and both units can run from 110 v via DC converters, or from AA batteries. Both will run a vocal and an instrument mike at same time.
The Cube runs 2.5 watts per speaker, for a total of 5 watts. The AC 33 has 15 watts per, for a total of 30 watts. (This is plugged into external power; the batteries deliver a bit less on the 33, around 20 watts.)
Still not gonna peel the paint off the walls, but the new one has four-to-six times more wattage than the old one, depending, and is smaller and lighter weight.
What's not to like?