alaTest has collected and analyzed 35 user reviews of P3 P4920 Robotic Vacuum Cleaner from Amazon.com. The average user rating for this product is 3.0/5, compared to an average user rating of 4.0/5 for other products in the same category on Amazon.com. People are impressed by the size and design. The usability and price are also mentioned favorably, but many are critical about the reliability.