Join Date: Sep 2005
Bikes: Windsor Fens, Giant Seek 0 (2014, Alfine 8 + discs)
I have a Planet Bike Protege 9, wired (I won't do wireless, I just don't see the point of the extra complexity involved). It's 5 years old and no problem so far. I have also had a cheap $10 KMart computer in the past, and it only died because it really wasn't waterproof and it was out in a storm once. It worked fine for 4 years before that though.
I did have a computer where the sensor died once, so I cut the sensor off of the KMart computer's mount, which I saved, soldered it onto the other computer, sealed it with liquid electrical tape and used that until I bought the Protege.
Work: the 8 hours that separates bike rides.