Absolutely love these so much. Used them for the other side of our kitchen for more storage and a coffee bar. 

There was a bit of droopage in the middle but I realized there is also two bolts there so if you have a little drooping in the middle make sure those bolts are tight. Once tightened, no complaints. More of a user error than anything else. I recommend them 110. Sturdy,  gorgeous wood and functional.