The sensor is used virtually every day for 2 years and so far has no weaknesses! The battery lasts a surprisingly long time, despite Bluetooth transmission and must be changed approximately every 3 months. Disconnections were now and then recorded at very low battery, but what I can not have a negative rate. The only drawback: a pair with Garmin devices does not seem to be possible, but that is according to the current state of knowledge at both manufacturers. Otherwise, a very reliable heart rate monitor, I can recommend without hesitation!
