I like to look of these bamboo trays and love that they have the surrounding lip to keep spills inside the tray and not on the floor.  One trays does not sit level and tends to shake when pushed upon. That is why I could not give a 5.  Am keeping them as it is too much of a hassle to send back and redo.

Pros: lip surrounding tray to keep spills in
Cons: on tray shakes when pushed on