Thanks for starting! I’m another refugee from Reddit.
I have two:
DS220+ – 2x8TB Seagate Ironwolf Pro – primary device, running a bunch of containers including Plex (of course) and some actually useful ones like Paperless-ngx.
DS214se – 2x4tb Western Digital Red (CMR) – backup target for the other one, i will be sending it to my dad to be my off-site. (I host his off-site at my home; the DS214se was a hand-me-down/gateway drug.)