QTS / vs QUTS Hero / SSD Caching

[Enquiries]

Hi Team, love your work! Quick question. I moving from a Drobo DAS to a NAS for my photo and video work. I've got about 18TB stored at the moment. I hate dicking around with storage so I've sunk some money to make sure I have enough to cover me for at least four years and to get the functionality of NAS. I've gone fo a TVS-872XT with 5 x 16TB drives. I it backed up locally to another DAS raid and I have backblaze cloud backup as well. I was intending to use RAID 5.

Questions:

- Other than the limitations on adding another disk without rebuilding the whole array is there any good reason why I wouldn't set it up with QUTS Hero in RaidZ1?
- For photo and video work is it worth using SSD caching in ZFS?

Thanks!

Nick