Hello Peter,

First impression : I'm a bit disappointed
I encountered a few problems and drawbacks.

Some panels sink more than the others (particularly the right and a bit less the left). Therefore they make a lot of noise and it's difficult to play hard songs.
I had to open a panel to refix the caouthcouc pieces above the sensors with superglue. Little remark : there's a bump on the pad but it's not cumbersome.

Despite a few "pad miss", the response is rather good.

My conclusion : It would be a good deal but there's too many drawbacks for a product like that.

I hope you'll understand my English.
Thanks for your attention.