I've been using the ergo computer for 2months now... and it's great !!!
All the info I need and then some. Took me two days to figure out how to use it and then wammo...
The best part aside from the data is the integration with pedals and being able to push the little buttons on the inside of the brake covers to change data view.
Only negative I can think of would be the long wires. I'd pref wireless...