The ease of use and the different amount of widgets they offer.

Knowi is an incredibly flexible web-based tool. You can join data from multiple sources (a previously developed Knowi dataset being one of them), add transformations _a piacere_, and then have the resulting dataset available as a "live" connection to data (with or without cache), refreshing at specified intervals, or "triggered". The many visualization options are quite customizable, and very importantly there's the option of developing your own via HTML/JS. I haven't dived into embedding, but I saw there are lots of options there, too, and regardless of embedding dashboards can have a public shareable link. You can also set up alerts or scheduled PDF reports via email/Slack/Teams/webhooks. And on top of everything, the tool is constantly evolving, adding features and fixes every week. Knowi has everything!

Being a non-technical user, I liked Knowi's search-based analytics feature. I was able to ask questions in English and get quick responses in the form of tables, charts, and graphs. Their customer support team also responded quickly to my support tickets. It was also easy to embed graphs and charts on our company's online portal through Knowi's embedded analytics feature.