The keyboard works well, it can be programmed to any Midi channel very easily.
I was a bit surprised that the description of the keyboard on the website and in the manual was different to the unit supplied. That is to say the manual shows a power switch and external power input, but the unit supplied to me just had a USB socket to power it, no switch or power input socket.
As I needed to use it on my Modular Synth one with a separate Power Supply would have been fine as the synth does not use a computer. I am yet to try powering it from a car cigarette lighter USB charger, I hope it works as I like the 25 note Midistart.