Easy to put together.  Light weight, but sturdy enough.  One packed down, full to a bit overflowing bag fills one washer load in my extra large capacity washer.  Wheels well down our laminate hall and it's just a beautiful thing to manage the laundry now, I know exactly when I have a load ready to go.  One bag for whites, colors and darks and the fourth for our towels/linens which we wash separately, so it's perfect.  Pay attention to the comments below the descrip on Wayfair- one of them mentions clicking in the casters- do this when fully assembled and lean over the corners with your weight until they click, or else they won't stay in.

Pros: sturdy enough, easy to use, makes life much more organized!
Cons: They could/should have made the bags a bit wider to hold more- there is room on the rack itself to accommodate that.