I think it’s legit to put in this threat reviews of Vivaldi in other webs. Nothing to do with clickbaits. Take a look in the pages from other browsers where it says “xyz Browser in the web”. It would be different if Vivaldi paid others to post positive reviews, which is certainly not the case. Not in this case nor in all other reviews in other tech blogs and publications, almost all positiv.

The inbuild ad/rackerblocker works fine for me, even blocks cookie advices and even some paywalls. It depends only on the filterlists you add. The only site where the Vivaldi adblocker failes is YouTube, but for this I use instead a script with Violentmonkey which get rid of all ads, nags and craps in YT. You can adjust your adblocker with the help of this service