Today I received it and tried it... I don't know why some people say that it fogs up and leaks water... First of all, the mask is surface, meaning you can have fun with it... I tried it and dove up to 2-3 meters below and it didn't fog up... What I noticed is the following... the deeper I went, slowly it started to leak a little water, but to a very small degree... as soon as I surfaced, any water that had entered was easily drained from the chin where there is a drainage valve... in my opinion, the mask is worth it and personally, I am very satisfied!!! Especially considering that this specific mask is sold on other sites for 30-35€...