I did not measure the performance or ripple but I think that the sound quality improved: the piano sounds better.
I think I can hear the differences to the original (Allo) power supply even if I do not have high-end equipment.
I like the front and rear USB sockets and the surface finish.
I would have preferred a slightly harder power knob and a stronger feed-back but this is really not important and has something to do with the personal expectations.
The delivery to Germany was very fast.
My conclusion: excellent power supply.
Would I recommend it to my friends? - Yes!