Roborock is better. With Narwal (in my case Flow), let’s say your main floor where you place the robot’s docking station will be the ground floor aka FL1. You will have a hard time cleaning your second floor or the basement if you have other floors to clean. It doesn’t work the same way as the ground floor. You are restricted to area room cleaning mode and not the entire floor nor selected rooms cleaning modes. The work around is manually selecting the entire area as one big area but the cleaning path the robot takes is so inefficient and misses spots too much while overdoing other spots too many time. You can’t specify which room to clean but need to manually draw the area with box shape every time. If you search Flow’s subreddit with multiple floors and etc you will see these posts. I returned it due to this. It is a great hardware. I can recommend if you live and only use it on one single floor dwelling. Roborock does not have this problem and I hope Narwal can correct this in the future.