I tried it the day I received it, and it took me several days to finally feel comfortable using it. It's very easy to use, both with foot and eye masks. The customer service was great, the logistics were fast, and the discounts were great. I was so satisfied with it that I've repurchased other products. I really recommend it. My friends were also surprised when they saw it. This is a very solid brand, and the price is worth it. It's good.