Bests & Worsts Reviews from Amazon

App: Roborock App is much improved over the Mi Home app. The Mi Home app is designed around home automation and has a lot of structure that isn't relevant to using the vacuum that just gets in the way. The Roborock app is focused on vacuum operation and setup alone leading to much less lag, substantially better maps, and an overall more responsive and intuitive UI. One killer feature of the S6 is the ability to direct the robot to clean a specific room rather than requiring you to manually draw a cleanup zone as you would with the S5. This means I can have the robot clean my carpet and entry hallway every day, but leave the rest of the floor on an every other day schedule. Multi-Level/Floor Support: The S5 can be moved to another floor, but all no-go zones are erased from the prior floor, which is annoying. The S6 supports the saving of 3 maps. The best improvement on this functionaly is that the S6 can be moved to another floor and when returned to the base station the previous map and no-go zones are restored. This works out great for me as I don't have any no-go zones on my second floor. Noise Levels: The S6 is substantially quieter on carpet, noticably quieter on hard floors. When running the S5 on balanced you have to raise your voice while the robot is running. The S6 doesn't require any changes in normal conversation. A good portion of the decreased noise seems to be in the drive wheels rather than the turbine, it just moves around more quietly. If I had only an S5 I wouldn't have called it loud, but I didn't really want to have it running while I was on the same floor. The S6 is just quiet enough it's not an annoyance to have running near you. Navigation: S6 seems to find its dock and identify the surroundings slightly quicker than the S5. The same left side first mapping process is used to create the boundaries of the map. My S5 tended to wedge itself under a dresser at least 75% of the time I ran it upstairs. The S6 seems to have a better feel as to what it is able to clear and hasn't gotten stuck once yet. Cleanup Time: On the main floor the S5 took an average of about 72 minutes to clean 63 sq m while the S6 was able to do the same area in 68 mins which is a 5% improvement in cleaning time. It seems like zoned cleanup increases the time slightly as the robot is following the defined zone lines, which likely increases the cleaning time. Overall I think the S6 is a good improvement over the already great S5, but it could be better with improved multi-floor no-go functionality.