Wanted this to help my wife move elements of her office around throughout the day as she bounces between therapy clients. The cart held up well with multiple 3-ring-binders in each shelf. The challenge of getting the cart over door thresholds was our only issue and where we noted the way the cart would give way as we tried to push and it disconnected when we didn’t lift from the bottom shelf. In an open therapy room without any floor obstacles, this works wonderfully!