A great product. Not super heavy duty but reasonably sturdy. I can't see it ever breaking down with normal use. As expected for the price. No real negatives. A big plus for the depth of the drawer. I could fit a lot more stuff in there than I expected (although also slightly less height inside the drawer than I had expected).
Primary reason for buying this was the price and was expecting something that was just about functional but this unit is a quality item and very well built. From the way the latch opens and closes to the smoothness of the rails, I can thoroughly recommend. Be aware that the last 25% or so of the drawer remains covered even when the drawer is fully extended (common with other drawers of this type).