I've had 3 or 4 HR monitors. They work for awhile than stop. I've repeatedly replaced batteries and reinstalled software. Online support is a little slow. I haven't been able to get a phone number to to to a real person. I think it would help tremendously.
The speed and cadence device works fine.
I ride a Specialized Roubaix. This device will not fit. The magnet for speed that connects to the spokes does not clear the space between the sensor and spokes. Making this useless for me. I would have given it four or five stars if the company had a spec sheet or clearence requirments listed on the box. 1/2 inch minimum is required for the magnet to pass.