I use a FreeNAS box at home..from IXsystems. Good stuff. I paid a bit more for ECC. Why? my families history, all this pictures are kept on the NAS (backup to backblaze) and a local dive. In the last 8 years, in Photos I have encountered maybe 11 issue where the picture was screwed. Each time I looked at the NAS copy, snapshot, etc. where I was able to recover the correct photo. The cost difference over time in a few cups of coffee. It is worth it. If you can afford the NAS I do not understand how you cannot afford the ECC.