Sorry for the late reply, new user and couldn't post for a few days...
Anyways, I bought the green Zelda controller a few months ago when it just started getting clearanced ~$19. Bought a second chrome Mario when it hit $10.
For me and the 5yo son, worth it for $10. We bought genuine Pro controller soon after Wii U purchase, these PDP do not stack up but its also 1/5th price now. Main usage goes to Smash, Disney Infinity, Skylanders, DK Topical, and Mario Kart 8. No quality issues with either controller yet.
Pros: Cheap. Works well for us on most games, we only have 1 so far it doesn't work with.
Cons: The ZR/ZL "triggers" are not pressure sensitive, so some games requires a full press of the button to properly function-this is my sons biggest issue.
As noted, you will need an original Wii Mote, so take that into consideration as well. The cord is about 2' long so we usually have the WiiMote sitting in our laps.
The button layout is a little awkward for us, we are used to the Pro/GamePad button layouts. (If your looking for a GameCube like controller this could be a PRO for you).