Great vacuum cleaner. One of the benefits is its compactness. Practicality. User friendliness. Though little in size, mighty. After using a huge vacuum cleaner to clean the 2x3 carpet, we observed that the carpet was still not particularly clean despite our efforts. (for a picture, see below) The power setting is determined by the vacuum cleaner itself according to the area being covered. Vacuumed 2 rooms in 30 minutes. Fortunately, the battery still has twenty minutes of life left in it. work in Auto mode. It took another twenty minutes to complete. "Finish off" to discharge the battery to zero and make a complete charge (this is not in the instructions, but for a battery, a full cycle at the beginning of operation will undoubtedly be useful). "Full charge" to bring the battery back up to its full capacity. Because of the drawbacks, the start button ought to be modified so that it can be covered up with a bracket. Even when you are only picking up the vacuum cleaner or throwing trash out, there is a high probability that you may inadvertently hit the button and start the machine. The cost is prohibitively expensive.