According to a review on Wired.com: "High cost. Poor design with a too-short cord. Ultimately just as time-consuming as applying a little elbow grease." In the end, we will let you decide for yourself.
Source: Lasky, Michael S. "Ecovacs Winbot 7: A Pain in the Glass." Wired. Conde Nast, 19 Mar. 2013. Web. 30 Jul. 2013 <http://www.wired.com/reviews/2013/03/ecovacs-winbot/>.