I have been using this product for a few days, it is a good product with a brilliant idea. The heat function is warm and comfortable, it heats up very quick (within a few seconds) The material is soft and easy to clean with a simple wipe. (Not water washable)
It helps reduce my eye stress, as I work on my computer so often, I use it daily about 15mins, it can relief my eye pain and make it relax.
I truly recommend this product for office people who use a computer daily.
The only con of the product is the operation noise, the noise of applying and relaxing pressure was too loud for me. The noise is okay to the user, however, it is a little bit annoying to the person sleep next to you. So I do not recommend using it while your sleep. But I do recommend using it in your resting time.
It also has a Bluetooth function on your phone. I will rate 4 out of 5 to this product.