Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Fun and unusual space age toy

This is a really cool toy that comes with somewhat of a learning curve. Getting it started is the hard part- it can take several hours to figure it out. The trick to getting it going is, to have it spinning pretty fast to begin with. It is almost impossible without using the red starting string they provide.I use it mostly as a toy while sitting behind the computer to exercise a little as well. It reminds me of the old gyroscopic toys that were popular in the seventies. After a few minutes of keeping it going you can feel some muscle fatigue- which is a sign of the exercising effect. Almost all of my friends were intrigued by the novelty effect! It makes a great ice breaker and conversation starter for newly arrived guests. Just spin it up and put it into their hands... Some scream and drop it and others can't put it down!