Works Ok with PS2 gamepad and DDR dancing mats in Wii
I have used it for connecting my PS2 gamepad to the Wii and play Gamecube games and it works perfectly. Moreover, the PS2 gamepad works with some SPECIFIC Wii games (only a few games a ready for that as Mario Kart). I have tried it with my PS2 dancing mat and "Dance Dance Revolution: Mario Mix" for gamecube and it works perfectly (on Wii).

nice!
This is a convenient tool.

Great product saved me lots of money
After recently converting from PS2 to Gamecube i was able to use my old controllers with the Gamecube, this came as a huge plus and saved me quite a bit of money. The quality is great and the shipping was prompt

Thank you Play Asia you ROCK!!

Good converter
Did not noticed any input delay while testing with Soul Calibur 2. It is good converter

Attention fellow Wii DDR players
I bought this so that I could use my PS2 Ignition pad to play DDR Hottest Party, and it works perfectly, with no delays or any other issues. The mapping of the non-arrow buttons is not as expected (when playing Hottest Party, X is "confirm" even though that's where the B would be on a Wii pad, etc), however, all you have to do is figure out which corner button does what and it does not affect gameplay itself anyway.
Will be repurchasing once my first one wears out!