I have a Cintiq 13HD and it is a great device, with a few quirks. My main problem with it is that I find the stand fragile and fiddly, and the device screen too low to work on comfortably.
If you also have this problem, I recommend the Kensington Smartfit Easy Riser Laptop Cooling Stand. Despite having a name four words too long, it’s robust, easily adjustable, and has useful rubber feet that prevent “slippage”. It costs less than £20.
This is one:
I hope this helps… someone?