It is a legitimate browser. The BAT token has been out for a few years already. It is just a part of the side hustle. The notifications have to be clicked and of you are able to get a lot of ads clicked, then it really adds up.
Up to you though. The most i have made in ads is about $8 usd in one month. So its not a lot, but i like it. Thanks for your support dear. I see youre doing good! Keep it up.