0 Experience here. Followed the instructions, checked some youtube tutorials too, and managed to replace the battery easily. The adhesive strips on the original battery were somewhat hard to remove but as clumsy as I am, managed to take out the battery without destroying other parts. 10/10.

I managed to fix my screen, back to normal, no experience here. However, right after finishing the steps, the main cameras would not run and only showed a black screen (tele, main, wide). This did not seem to affect the front-facing camera. I restarted the phone (about three times, plus the two you need to get the fingerprint sensor recalibrated), forced-stopped the camera app and erased the cache and data on the app, and these would still not work. Did my research online, did not find any previously reported issue, and after a while and recharging the phone, the cameras started to work normally. I panicked for a while, but before re-opening the phone again to see if something was wrong with the cameras, and then ruining the replaced screen in the process (and the adhesive), try everything and charge the phone and wait for it to work.