I’m using Safari 12.1. I’d describe it as a love-hate relationship at best.
The minimal interface is nice, and I’m familiar with its controls and layout, but I come across too many instances where something doesn’t work in Safari, but it does in Chrome or Firefox. Like videos fully buffering then not playing, websites that require disabling an ad blocker thinking said ad blocker is still enabled, or Safari attempting to disable the ad blocker by itself (uBlock Origin, occasionally I’ll find it unchecked or removed entirely without warning).
Sometimes the viewport will stop updating entirely. Browsing a page and suddenly nothing becomes clickable. Enter another address and hit enter, the progress bar indicates a page is loading, but the viewable area stays on the previous page. If I close the tab and open another, it starts working again.
I’ve considered moving across to Brave as well, but it’s almost habit to continue using Safari at this point. Still, I should eventually make the switch to Brave as I cross into multi-platform environments, so I could then run the same browser on every machine.