I use the iCloud custom domain for my personal email and I can confidently say it's worth the cost.
I am definitely engrossed in the Apple Ecosystem™ though so I can't speak to how it would fit any other setup that isn't almost entirely Apple-based.
iCloud plus has had some issues in the past, they pretty aggressively filter emails to the point of just not sending/receiving messages with certain phrases. <a href="https://forums.techsoup.org/t/icloud-email-system-blocks-emails-containing-certain-phrases/206" rel="nofollow">https://forums.techsoup.org/t/icloud-email-system-blocks-ema...
EwanToo · · focus · HN ↗
frizlab · · focus · HN ↗
zeeveener · · focus · HN ↗
I am definitely engrossed in the Apple Ecosystem™ though so I can't speak to how it would fit any other setup that isn't almost entirely Apple-based.
jgx0 · · focus · HN ↗
Angostura · · focus · HN ↗
pflenker · · focus · HN ↗