This thing has saved me so much back pain. I carry about 20-30 pounds of textbooks to class every day, plus my laptop and notebooks, and I've started putting my backpack on this instead of carrying it. At first I resisted using a rolling backpack, because there are a lot of steps at my school, and I figured I'd just have to carry it a lot of the time anyway. But this thing is so well-built, I've been dragging it up and down stairs with my fully-loaded backpack for months with no problems. It's also easy to collapse the handle, then lift and carry the whole thing one-handed. The wheels are soft and relatively quiet, and work just fine over grass and plush carpet. Plus, it folds up tiny, so it doesn't add that maddening half-inch at the bottom corner that makes my little rolling suitcase too big for carry-on. Would definitely purchase again.