Impressions after about a week of use.

Individual pages seem to load faster, but the behavior of the browser itself before and after loading seems to deteriorate (especially when multiple pages are opened at the same time).
Also, some sites don't respond to reCAPTCHA authentication, which may have been blocked.

I think the ability to detect trackers and block malware domains is high, scam sites (phishing?) aren't counted yet, so I'll leave them out of the current reference.