I bought this to use outdoors when the spring comes, however the ability to create training workouts based on HR/Time/Distance has given me a new appreciation for my indoor trainer and I've been using it a lot more!
Hooking up the cadence sensor was easy. Setting up the display took a few rides before I got it the way I wanted it. All the information I need is displayed now. Reliable and accurate. Used it over 10 times, never had a problem. Just a few small things; heart rate sensor not up to polar standards (polar first generation type, solid plastic) display could be slightly larger. Other than these small problems, a must for any cyclist (even if you don't need cadence or heart rate).