Thanks for your input. Given that I will be using an adapter for the new thunderbolt storage unit (I don’t have TB3 only TB2) I may first want to see how my Mac Mini handles the device first. The big features of a NAS I likely don’t need (I have a separate device running vms, most of my data is iTunes based so Plex isn’t a big deal). Likewise my main cloud backup solution CrashPlan doesn’t formally support NAS at all( I can map it as a network drive and it can try and back that up to the cloud but they word and frame the doc like I should not do it) so going all NAS isn’t an option.
I may end up getting another DAS solution and make it the offsite backup and maybe buy a large external drive I can use to move data site to site.