iRobot Roomba i8+ Robot Vacuum – Costco Sale! by Rhonda July 12, 2022 July 12, 2022 *UPDATE* 7/12/22. The iRobot Roomba i8+ Robot Vacuum from Costco learns your home floor plan to help keep floors clean year-round. It works with Google Assistant or Alexa voice so… 0 FacebookTwitterPinterestEmail