[snorremd]

Yes. I've used them for a few years now and never had any serious issues. Their delivery rate seems good, I don't get much spam, and so far as I know I have not missed legitimate emails.

They have a fast web client where you can perform actions on your entire inbox. So far as I remember gmail only allowed you to do actions on the current page of mails. If you don't want to use their official clients you can always connect via standard IMAP and SMTP.

Also they support plus-addressing like gmail, but also subdomain addressing. I.e. instead of [e-mail] you can use [e-mail]. You can also set up nice email filters quite easily, and their server supports the JMAP protocol [1], which they made. So if you want to interface with your mailbox programmatically they have a more modern protocol to use.

The years I've used them I only remember them having actual noticeable downtime once. Other than that rock solid. Their first line support isn't super technical, but I've only tried to contact them once.

Edit: Essentially if you want good olf-fashioned mail, Fastmail is about as good as it gets. It does not have the smart inbox concepts that Google Mail and Hey do. And not so much in terms of other fancy stuff either. But it makes up for it by using open protocols for mail, calendar, and contact lists. So no danger of lock-in.

[1] https://jmap.io/index.html