I've only really used it to check how my portfolio site would render on a non-Chromium and non-Gecko browser, and actually found a few issues with the site that needed fixing. Would have used Safari if I had it, but the only apple device in my household runs Linux 🤫.

Aside from that, it's a very lightweight browser and fits in well with the Gnome DE design style. Personally I wouldn't use it as a primary browser since I've got all my extensions, bookmarks and container tabs all set up in Firefox, however the simplicity and clean design of Epiphany is quite appealing imo. The last time I tried it there was an option in the browser settings to block ads, pretty nice to have that OOTB