Product review (5 stars): Works as intended.  Sturdy and looks good.
Adhesive is better than the magnets that keep falling off.  It is easy to apply and stays pretty well. Sliding it back and forth is simple.  It is unobtrusive.

Works great in my house so that my husband and never have to keep asking each other if the dishes are clean or dirty.  (sometimes you can't tell because we rinse before putting them in the dishwasher).