I bought this as a clever solution to the problem of having two bikes.
Nashbar Dual Computer
Not only was it on sale, but it looked decent. Unfortunately, it came with two broken sensors. I contacted the site and they were very helpful and let me return it for refund, replacement, or some other item. I returned it for a cateye velo 5, bottom of the line, trip computer.
Just got the new one today, so no comment on it yet, but stay away from the nashbar cyclocomputers!
Nashbar is great though,