Fastmail has a fantastic UI. Not E2EE, but the features are solid, and it works really well (nice integration with 1password to create aliases while signing up for sites, too).

I HAVE TO HAVE MY TOOLS!

Omg I just started doing the same thing, and I also love it. Really enjoying using Plexamp, it’s one of the best apps I’ve used in a long time, and it might be the best music app I’ve used.