The build quality is solid and does not feel cheap by plastic.
Unfortunately, the recipient of a Wave Birds protrudes a little piece down over the adapter, so that it no longer lies flat on the surface, except that he is at the very edge. This is followed by some people might interfere.
On PC the adapter did not work right with me. He registered a continuous input of the analog sticks, so you practically can not play properly. Tried with multiple controllers and various games. Therefore, a star deduction, because the function was promised.
But who wants to use mainly for the Wii U him, and are certainly most should, strike without hesitation.