[Xiaomi Redmi Note 5 Pro ROMs, Kernels, Recoveries,] Rylsm:
I'm a AOSiP users since 8.1 and IMHO it was one of the most polished ROM available back then. So I tried this ROM since, well, it's AOSiP and I want to try something new after getting bored by MIUI 10.

My first impression is quite good, especially the gaming performance. PUBGM performs a lot better on this ROM compared to MIUI. The performance is significantly better than the first Android 9.0 ROM I've ever tried. Every basic feature I need are working fine so this might become my daily driver. But then, it's a beta software quality-wise so there should be some issues with it. Some of the issues I've found on this ROM are listed below:

Offline charging indicator doesn't work. It always showing 100% all the time so it's pratically useless.

In /vendor/build.prop, there are some property with the value that contains more than 91 bytes of character. Those properties are not parsed since its value is more than 91 characters. Reducing the value character count by removing some package name fixed the issue.

The properties I am talking about are:

camera.hal1.packagelist
camera.aux.packagelist
vendor.camera.aux.packagelist

There is no default Camera app and the camera functionality are unreliable, especially on camera app that uses Camera2 API like modded Google Camera or any other camera app available on Play Store. Sometimes it will stop working and don't even want to start after reboot. At a rare circumstances it will magically work and then cease to work again afterwards. Thankfully some modded MIUI Camera are working fine here so it's not a really big deal.

Another issue with the camera and the most annoying one is a massive stuttering during WhatsApp video call. Adding com.whatsapp to camera.hal1.packagelist properly doesn't fix the issue.

The "Enable Camera2 API" toggle inside of Settings > System > Advanced doesn't work, it just crash and complains that it couldn't change the Camera2API related system props.

Since I don't have any hardware issue related to the camera on MIUI so I'm pretty sure it's ROM related. I will attach some logs if needed.

There are also some minor glitches/issue like:

A clock is visible in the lockscreen statusbar after every boot. The clock shouldn't be there but it will go away after unlocking though so it's not a big deal.

Notifications are retaining the background color of the last device theme (Settings > Display) and makes them unreadable after switching the device theme from dark to light or vice versa. Restarting SystemUI seems to fix it but I hope it can be fixed on the later build.

The network speed indicator are aligned to the left. I think it's better to align them to the right since it's fixed to the right side of the statusbar.

No out-of-box FM Radio app, this is optional and maybe only a few people will use that feature (including me) but it's nice to include it by default.

Intent selector are buggy. I have reported this on Telegram group before.

Overall this is ROM is quite nice to use. But some of issues I've found are unbearable and counter-productive so I might replace this ROM to something else after holiday season ends if the issues are not fixed yet. I will try the latest build whenever it's available for the entire holiday to make sure that the problem I've listed here are fixed