Overall, it will serve its purpose to carry books. Delivery was extremely quick as it said it would take 3-4 weeks, but it took about 3 days. As for the cart itself, one of the locking wheels does not roll well, but does function. Not sure how long it will last. Yes, I checked, it is unlocked but still doesn't roll well. The bottom half of one of the shelves was poorly aligned for the welding and does not match up with the wholes for the mounting brackets. For me, this is not a problem, I used it on the bottom shelf and do not plan on putting much of a load on it anyway. I'll keep an eye on it and will update if it becomes a problem.