I tried Vivaldi for 6 months to evaluate it. It is a beautiful browser, with extensive features and very easy to use. There is, however, one drawback, excessive power consumption. On my MacBook Pro, if I’m charging, and run Vivaldi, the Mac stops charging, the power light goes from orange to green, and the battery stays at the current level and will not charge. Maybe this is just my Mac, I don’t know, but I have to leave Vivaldi, and I’m sad about that.