Xbox 360 to ps3 controller adapters... are they any good?

DealExtreme: $16.50 XBox 360 to PS3 USB Wired Controller Adapter Converter (100CM-Cable)

XCM Cross Battle Adapter 2.0 for Sony PS3 Xbox 360 NEW - eBay (item 250520672948 end time Sep-22-10 00:06:13 PDT)

Anyone had any experience with these? Do they lag?

P.S. Search function wasn’t helping too much. Sorry if this has already been discussed.

No good

Thanks for the link, but that thread seemed to have pretty dated info. I’ll look into it more, though.