Oversimplies and has ads for the extension itself, which doesn't make sense. It actually says,
Give good old Wikipedia a great new look:
with "Get Wikiwand" as a clickable button to this extension page, which conveniently guided me to the review section so as to leave a poor review. Great work, dev, advertise to use the extension within the extension.
The whole extension removes utility from Wiki while replacing it with ads for itself. Especially if you are a wiki contributor, stay away from this toxic extension and don't be dazzled by it's semi-modern and over-simplified UI