I like really the AOSU-system.
I have started with 2 solar cameras for testing. Shortly I added the door bell and a further solar cam.
Now I use 3 Solar cameras, a door bel plus a L5P camera with 2 spotlights-. The last camera replaced an lED spotlight with motion sensor- which was broken. There was already a 220V supply - so here I have no issue with solar/winter battery performance.
It’s really fast installation and adding to the existing system