PLUSES:- Low height of 2.2 inches means it can go under furniture which other bots can't.- Very low noise level, not quite silent, but not a menace like my Roomba Discover or Neato Botvac 80. The dog mostly ignores it.- Very easy to program for daily cleaning (just double-tap the power button at the right time).- No rollers to clean.- Filter is easy to clean, because most dirt is caught by first stage of filter, a mesh screen which is easily cleaned under running water.MINUSES:- Manufacturer claims it cleans bare floors only, not carpets. However, I found it does work well with wall-to-wall carpeting. What it cannot handle is a small step-up on the ground, whether it be climbing on to a rug, or climbing over the barrier between a tile and hardwood floor.- It gets stuck in narrow passages. You will learn where these are and have to find a way to block them so it won't go there.- It does not pick up all the dirt when it passes over it, however, it runs for 90+ minutes, so it returns to clean each spot multiple times, and does get the dirt in the end.- A major flaw is that if the Slim2 is taken to another room away from the charging base, then once it is done and the battery is nearly empty, it will keep moving around the room searching for the base. This results in an overly discharged battery, which is not good for the battery. There is no way to disable this behavior.GENERAL:- The peel-off plastic films were completely loose on the product. If they can't put these plastic films on properly, they should leave them off.- The brushes move loose dirt toward the suction port, however, they cannot loosen any stuck dirt. The port has weak suction, comparable to the suction part of a Roomba Discovery (the Discovery additionally has rolling brushes, which pick up most of the dirt).- When cleaning a room in AUTO mode, the Slim2 keeps running until the batteries are almost exhausted, even if it is a small room. So it runs for 90-100 minutes instead of 10-20 minutes.- Navigation is a combination of methodical wall-hugging and random movement. However, it is not nearly as effective as my 10 year old Roomba's random navigation. It can get stuck in some spaces for a long time, and is really only suitable for a simple rectangular room.- Finding the charging base can take half an hour in a "L" shaped room with lots of stuff in it!- Photos show some baking soda which I freshly sprinkled on the floor, then the result after the Slim2 ran through it without its two brushes, then after it ran through with both brushes attached. This demonstrates the weak suction. The good thing is the Slim2 does eventually get the job done.- In another test, I used the Slim2 to clean a bedroom with wall-to-wall carpeting. When done, the bin was half full. I then cleaned the same room again with my Roomba Discovery. It picked up very little additional dirt, showing that the slim2 had done a thorough job.- In my last test, I used the Slim2 to clean small eggshell fragments left by the dog on the kitchen's tile floor. I then cleaned the kitchen again with my Roomba Discovery, which picked up many times more eggshell fragments than the Slim2 did. The shows that the Slim2 is not effective at picking up "heavy" dirt, due to its weak suction.