Very effective with blocking any advertising. Unfortunaltely, it goes a bit too far and also blocks desireable features, for example, it blocks Webex from opening in the app, which is a productivity killer for me. Adding a website to the whitelist is not very convenient as well.

Very Unfriendly Dev. There are multiple issues with ublock, performance loss, sites not loading, showing page from different tab, strange behaviour overall, if a site is blocked i cant see what list has caused the issue.

Good