Two Tier Produce

Been told that my store is getting the new two tier ambient produce shelving next month and wanted to see what others think of it. Can anyone that already has them prepare us for any chaos that will ensue or problems when they're first installed?

Somebody also told me that the drawers underneath are locked and only produce & dot com will have the keys. Is this true? Not sure I believe them...

Attached a photo for anyone that doesn't know what I'm on about.