Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Its Worth it.

I thought this was going to be a ridiculous waste of time. My wife made me do it. I lift a couple of times a week, and lately I've been thinking about doing crossfit. I've done this workout 8 times so far, and think its great. You can do it anywhere. You only need 2 dumbells.Because I can do it at home and don't have to go to the gym it saves me a lot of time. I'm still lifting, but on my off days this is a great way to mix it up and get cardio in. Highly recommended.