I switched a year ago and I was emotionally prepared to fight a rough battle with problematic websites, incompatible apps and so on. I was very positively surprised. The only major PITA was the fact that I had to define MIME types for downloadable documents that I wanted to save by default - the usual box "remember this option" was missing for .mkv and the like. So far, this was the only major complaint on my part. Everything else was very positive, especially the containers, no forced Google logins everywhere, the availability of extensions that Google doesn't like (like Ad Nauseam) and so on. I wouldn't go back even if someone paid me (OK let's be honest: I'd do it if I was paid more than €1000 a year).