Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Difficult to start, Insufficient resistance

I have gotten this item to work as advertised only a handful of times. The rest of the time has been spent attempting to make it work as it is advertised to. I've tried their silly suggested methods for starting it by flicking with your hand. Goodluck. The string method, a small red string wrapped around the inner ball mechanism and pulled quickly to generate rotation, works on occasion, but is nowhere near reliable and will result in you fiddling with the thing trying to make it work moreso than benefiting from it. If this is intended to relieve carpal tunnel symptoms when used properly, it would only exacerbate said problems while trying to make this thing work as it should. The few times I was able to operate this device as intended, the resistance offered was minimal and was better suited to very light therapy than any kind of muscle-work or toning. The idea is great, a gyro offering resistance. Well, this one doesn't work.