Vivaldi is relatively young browser founded by the former CEO and co-founder of Opera Jon S. von Tetzchner.
It is aiming to be the power user’s preferred browser and comes with quite a lot handy features.
Unlike other browsers, probably the best side of it is that the team actually listens and implements the feedback coming from its users. With its latest major release and milestone 2.0 (October 2018), the team behind Vivaldi claims that nearly half of the new features are user feedback.
In other words, if you are a power user or consider yourself to be one, the new features will most likely be great fit for you, since they are inspired by the needs of “others of your kind”.