Pure Clean Automatic Robot Vacuum Cleaner

How long have we used the unit? 3 years. What type of flooring do we have? Hardwood laminate and Linoleum. Where have we used the unit? Kitchen, Utility room, dining room, living room, and bed rooms. What's the largest area it had been used for in a single operation? Approximately 700 square feet. (When the unit was newer) Harshest condition the unit has had to deal with? Pet hair, crumbled mud from shoe tread, seeds from parrot feed. Now that the operating environment has been established here are the performance analysis ratings. Pros: 1) The unit cost is reasonable for a budget unit. 2) The unit does a descent job at maintaining a clean floor. 3) The units battery life and range has exceeded expectations. 4) The sweeping patterns are suitable for covering most areas at least once. 5) Recharge is at a reasonable rate. If the battery is completely depleted it will recharge around 150 to 180 minutes. Cons: 1) The unit does not have enough vacuum power to lift heavier soil materials. Such as if the material is mud from shoe cleats. It will pick up most dirt, dust, and powdery like material. Chips and pieces that are approximately one quarter inch in size or larger will likely not be lifted. 2) Not ideal foe use with pet hair. To be fair this is a problem for many equipment. Even brooms get clogged with pet hair. The trouble here is that depending on the amount of hair and frequency of unit use, the sweeper brushes, and rollers become entangled or clogged. The unit will develop problems. Rolling and turning, poor sweeping, reduced vacuum power, and reduced battery operating time. Therefore if you have pets Where shedding is present. This unit must be cleaned often to optimize performance and prevent permanent damage. 3) Perhaps the most needed feature that this unit lacks is the ability to sense and recover from hazards. It has no vertical sensing. So it will continue to propel itself forward. It will wedge under chairs, desks, sofas and anything that it cannot clear height. We do not have steps and have not tested if it can sense them to not go over the edge. It would be nice if the unit would have had a logic to reverse and go another direction if it has been stuck in the same place for more than 5 seconds. Because it does not, the unit gets stuck often on some common household obstacles. Floor vents, trim, furniture edges. Summary: The unit is a great overall for the price. Three years of being used at least three times a week is a testimony in itself. The unit is great for smaller rooms like bedrooms, 16 x 16 feet. Larger areas can be done but it will take awhile for the unit to complete. If you have pets that she'd, I would recommend removing as much hair as possible from the area before the unit is deployed. Also cleaning the unit after use in pet areas is almost a given.