I had a problem with the newer builds of PE, but I was an idiot and didn't realize you were supposed to format data.
Anyway, this is by far the best ROM for tulip/twolip from my experience, and I've used plenty of them for this device. The customizability is enough for me to not trigger my OCD, but still allow me to experiment a bit. Now you even get a gcam port that works straight out of the box, which is amazing. The battery life is good. Not the best I've seen from all the ROMs, but considering a lot of Google stuff is running in the background it's completely understandable.
If I had to name a couple problems that are admittedly nitpicks, it's that:
1. Sometimes when pulling down the status bar, the original placement of the clock and notifications is still there and doesn't disappear as it should, resulting in the status bar doubling up on itself.
2. The volume button has a weird, seemingly broken animation where it appears from the bottom right corner and zooms up to the middle right.
If I had to make a suggestion for the ROM itself, I'd love it if you could implement a call recorder, but obviously since the ROM is reliant on stock Google apps this may be impossible to do.
All in all, great work, and every ROM adds something new and useful. Hopefully nothing changes when Android 11 rolls out.
EDIT: I strongly suggest AGAINST using the Mystic kernel(or any kernel for that matter) with this ROM. I didn't notice any major improvements but had HUGE issues with Wi-Fi signal stability. They were also very reluctant to update the info on their xda page. I would avoid any Telegram-only kernels in a wide, wide arc.