2 - 5 Minuten
back glass was scratched so I decided to replace the whole panel and these are a pretty good deal
Great!... except, the instructions keep mentioning a small plastic film covering the camera. I picked at both sides for a while (damaging the lens a little in the process) and found nothing. Maybe a coloured film or one with a little felt pen on it would help spot this "easy to miss" (or in my case non-existent) film. repair was otherwise simple
Don't spend too long looking for the film. If you are the OCD type, use a spudger so you don't damage the lens. Additionally, the neither the philips 0 or 00 fit well, so maybe ifixit can sell you one that's a better fit.