Hey thanks for the feedback.
Sorry that you're struggling with the stealth part. The AI will path to 2 random points, then to the position where the decorating mode player is, and then back to the door. At each point, he does a 360 spin and he'll catch you if you're directly ahead, or if you're right next to him. My strat is normally to set spawn in a hidden position, then move to a different hiding place that isn't visible from spawn. Can be tricky though. You set spawn by moving the player in decorating mode.
Hopefully, that helps a lil. Glad you like the game :)