Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Great set of weights and saves a bunch of room!

My friend got the 50 pound Powerblocks and recommended I try the 24 pound ones. I've had my PowerBlocks for a couple of weeks and use them with the P90X program. I love them.They are super easy to adjust, and the set-up time for lifting weights went down exponentially. Instead of having to move multiple sets of weights, I just have to move one set! Also, if I find I chose the wrong weight (too heavy, too light), they are quickly adjusted. The 3 pound increments are convienent too.My only complaint is that I am not flexible (wrist doesn't been like it should) and sometimes my wrist hits the side bars on supination curls. Other than that, I don't even notice the side bars.I highly recommend the PowerBlocks!