I've been using Hades for about the past 3 months, on my galaxy s8+ exynos. I have to say it's been amazing, such a great outcome from the hardwork of the devs. I havn't had any trouble with blank screens or reboots. I've rooted with magisk and have full functionality including iris scanning and google pay. Highly recommend and can't really fault any of the work done by the devs.
The only small very niche issue I've come across is when viewing a HDR video using the reddit app, the phone adapts the display for HDR, but occasionally the display won't revert back to normal and a reboot is required. All HDR options in phone settings are turned off, so I'm not sure if it's a bug with Hades or just reddit's garbage app. But not a big deal.
Keep at it (if you are), looking forward for v4 if it comes
