I've seen several people complain about the functionability of wireless units lately around here...

It's a great idea but honestly one that I'm surprised works at all. My luck, I'd buy one and join a group of riders and someone there would have the same unit.

I'm actually using one of the cheapo schwinn units that so many complain about and it works perfectly for me. Seems very accurate and has almost every function I wanted, and it was under $10 at walmart. Biggest problem I saw with installations was the wire ties eventually cut through the wire if you pull them too tight. I just used some pieces of rubber hose to protect the wire and all seems well.

Good luck with yours there...