These have worked out great. Where my lockup is located there is a constant supply of baskets being left. once the basket is removed and a spare wheel is put on top of the wooden platform it becomes the perfect working height.
It also make the whole project totally mobile, when you need space on the right it can be pushed very easily. On good days the whole project can be pushed outside. I have found it really easy to work with and i didn't have to look very far for the items.