I concur with the other comments that Fastmail is actually better than Gmail these days: the web UI is much faster and nicer, the Android app is not perfect but

I concur with the other comments that Fastmail is actually better than Gmail these days: the web UI is much faster and nicer, the Android app is not perfect but pretty decent, filtering and customization options are better. My only potential concerns are: spam (I still get most email to my gmail address and imported by fastmail, which filter out spam on the gmail side, so I don't have a good sense of their own spam filter), and overall security (their own production security as well as resistance to account takeovers, etc.)