Awful
Needs some help
Not works
Delete it and done
Decent
Won’t work
Response from developer
Please ensure you are using a textured wall with some sort of pattern on it in a well lit room. It's not always super convenient, but it's worth it to find the right conditions. ;)
Difficulty finding a wall that works
Response from developer
It is best to try to find a wall that has a texture or pattern on it as that will give the device more visual information to create the AR surface on. A picture frame or poster can also work well to create visual registration points for the device. Also, please make sure the wall you are trying to use is well lit. Hopefully these suggestions help. Cheers