I have had Syno Nas's for decades but a few years back I thought I would try Qnap out and purchased a TS-h973ax. I finally had enough of their OS although their HW is very good, better than Synology on comparable offerings.
To have the best of both worlds I put xpenology on it, would have liked to use Arc loader but the Qnap has no video output so used TCRP as it can be done by putty. I had no end of trouble getting any usb drive to be successfully identified until I decided to remove the Qnap dom from motherboard, then all worked well. I used the DS2422+ as the model due to being AMD processor and sata mapping being automatic based on fitted drives.
I now have a rock solid Syno nas running on latest update for the model installed, good to be back home