We received two Graco Swing By Me Portable Swings for Christmas after my twins were born in early December. Despite the negative comments I've seen in the reviews, these have worked fine for us. Albeit, we don't use them every day because we also have the Graco Little Loungers. We use them at least every other day for about 30 minutes at a time and usually on the lowest setting. That's all my boys need to fall right asleep in them, so we are pleased. It's been two months, and we haven't had to change out the batteries yet. Maybe other people keep their babies in swings more often, run them on higher power, or maybe we are just having good luck. Because we have the loungers, too, we have figured out how to switch out the stars for our boys to look at and how to make little light-weight toys that velcro on as well. The motor is a bit noisy, and the boys stare at it as much as the stars, but like I said, they fall right to sleep. No real complaints from me in that case!