usb n64 adapters

[Genome]

okay maby some of you have seen these on the net.

http://adserver.emulation64.com/banners/ebay/n64_psx.gif
http://www.jandaman.com/images/adaptoid.jpg
basically its a usb adapter that lets you plug your n64 or ps1 controller directly into the device wich lets you use those controllers on your pc. (they come with drivers to make it work). i was wondering if anyone here had tried one or heard if they work well with emulators.

[Ender]

I have one myself.
No problems with emus at all.

[Genome]

does it respond with the analog stick. im using my standard emulator controller that basically is a ps2 controller with a usb plug. i tried it out last night and i was stuck using the D-pad for mario 64 and zelda ocarina of time. they were pretty smooth and easy to use it just starts to hurt after a while of holding down the button to run across fields.

oh btw im using project64.