I agree, I’m a happy customer for several years as well. It’s not the cheapest service, but it’s no-nonsense and reliable.
I pointed my own domain to Fastmail and can use wildcard email addresses (like lemmy@mydomain.com) that all end in my inbox. Also my contacts are synced on the phone with Fastmail using CardDAV support, using the DAVX5 app on Android. It’s really nice to have this much flexibility.
There have been a few games where the goal was to make a planet/region habitable again, I’ve always liked the idea. It’s like a reverse city builder.