So, I owned the OnePlus One, two OnePlus 3T and currently run the OnePlus 5. I always used CM (or LineageOS) before the 5, they never completed the first setup

So, I owned the OnePlus One, two OnePlus 3T and currently run the OnePlus 5. I always used CM (or LineageOS) before the 5, they never completed the first setup once before I unlocked the bootloader, thereby reset to factory and I flashed a different ROM right away. Right now I'm on the stock ROM (and affected ofc) though. Question time: 1) Do you use your camera? I had the feeling that everytime I went from stock to CM/LineageOS I lost features and quality. 2) Why would you pick "Sultan's LineageOS ROM" (not trying to slight Sultan, whoever that might be. I'm curious) instead of going with the official LineageOS builds?