We have used this product for over 1 year now, it's reliable, and give us confidence as it is one of the very few products that senses motion / breathing. With risk of sudden infant death syndrome, and especially when the baby is very young, this is invaluable, providing us with a piece of mind. It's also really useful to bring on holidays, if you have a standard cot where you will go (like grandparents' home), but doesn't work on many travel cots as the mattress is not usually detachable, allowing you to slip the sensor pad under the mattress. Overall, it's indispensible, we love it!