I've only had the thing for 2 days, but unfortunately Netflix doesn't work... I'm currently watching Netflix via a BlueRay player. As far as I know, Netflix directly via a projector won't work...

Unfortunately not as far as I can see. I looked for it in the apps, but couldn't find it anywhere. I couldn't find / download it from the Google Play Store either. So you need some other medium (e.g. PS5) where you can install Netflix in order to watch Netflix via the projector.