We'd been looking for a very long time for a laundry solution for our family of 5.
We bought two of these and it was a great purchase!
A bag full comfortably fills our 9kg washing machine. 
We have a bag for whites, colours, blacks and darks and it makes it super easy. Just grab the bag and go. 
Appears to be sturdy and was simple to put together. Looks great on the landing.
Would highly recommend.