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Worked great....ONE SINGLE TIME. 2 hours later.....it wouldn't even turn on. I left it plugged in while searching for a solution and it started bouncing up and down by itself. Constantly bouncing UP/DOWN/UP/DOWN/UP/DOWN/UP/DOWN.....The "off" switch didn't stop it from bouncing, so I had to unplug it. One star for the entertainment and giggles. (Video included) I'm so disappointed. I love the CONCEPT, but seriously for $169.00 it should work perfectly for a long time. I've contacted Oliso Customer Service via email. I'll update this review when resolved.