i did not own an original SH-101, so I can't really compare the sound, but this reproduction of the classic sh-101 monosynth has the sound characteristics I was looking for. The arpeggiator is really nice and straight forward, and can cold up to 100 notes, which you can store on the device. Great feature! The sequencer is also really great. Unlike the volca series from korg, the products of Rolands boutique line are not too small for my fat fingers to control, but it's still small enough to carry around in my backpack and take out on the train or something. Apart from the monosynth mode, you can also use 4 voice polyfonic mode or chord mode, which makes it useful for an ambient setup.
The knobs and faders are solid, build quality is ok.
The device is battery powered, or usb powered. Usb cable is not in the package, nor is there a possibility to use a power cable. That's the only downside i discovered so far. If you use it without a computer, you can only power it with batteries. And after 2 or 3 hours, my batteries are dead. That's a bit tricky for live use, or my batteries just aren't good enough...