very nice review and spot on about the point of it not being a pass around unit. it will over heat doing that. hold the button a maximum of 5 seconds and let it cool off in between drags. also be careful while cleaning. They are making changes to the unit so it will be less likely to break while cleaning. The company cant control how rigid people clean it so I think its wise of them to make modifications to that part of the device. my battery lasted 4 days of 2 people using it 2-3 times each a night