⭐ Merited by n0nce (1)
I preordered this Apollo BTC (batch 3) 'full unit' late summer 2021, paid it in full and received it pretty exactly 6 months later.
One thing I don't like about preorders is possible long waiting time and uncertain delivery date, but I guess you used to it with Apollo and Passport hardware wallet 
It's not really quiet unless you clock it down
I think it can be done even without clocking it down.Maybe replacing fan with some Noctua quiet alternative (I think someone managed to do it with Apollo), and adding additional layer of isolation box would do wonders, for people who love DIY stuff.
I am interested to know whats your opinion and experience with Orange Pi 4 compared to Raspbnerry Pi 4?
I heard they are usually stronger and faster than Rpi's but they are also heating more.
Good thing is that you can always use most components for some other projects, if one day you decide not to use it for Bitcoin full node anymore.