Bigger screen than a regular android phone. Especially because your 6" 21:9 phone means a 16:9 picture on it will only take up ~5".
Also better controller. Those mounts for a phone on a regular Xbox/Playstation controller always make it too top-heavy since your phone has to be on top of the controller. And I love the idea of a full-sized controller over a Switch or even Steam Deck’s tiny buttons that just aren’t comfortable.
I’d probably only be interested if it lets you run actual Android stuff though. Have you seen the Logitech G Cloud gaming handheld? That one’s even more expensive, but it does run local games too.
why anyone would prefer that over simply using a regular Android phone with a good controller
I always think this is funny because that sums up /r/sbcgaming
I would continue to say don’t use RAID56. You can use RAID1, which will give you the sum of all your drives divided by 2 in usable space. As long you’re not matching say a 4TB and 2x1TB. It’s called RAID1, but really it writes all data to 2 separate drives, that’s why the 4TB and 2x1TB example you don’t have enough to write more than 2TB on separate drives. https://www.carfax.org.uk/btrfs-usage/ is a calculator you can play with
https://btrfs.readthedocs.io/en/latest/Status.html#block-group-profiles They still list RAID56 as unstable on the docs.