While I don't think the iBaby music system has any sound quality to speak of, and thus never use it, I don't consider that as a knock on this stroller itself. And to address what the other reviewer said about tire "spontaneously" exploding, I highly doubt that's what happened. Look up the Jeep Liberty stroller recall and check your stroller model number. I also don't agree with giving a 1 star rating for something that is likely user error. In my experience, and I've used this stroller many many times, is that the tires are great. Sure this stroller isn't lightweight, but it will last the duration of my child's need for it.