Product review (4 stars): Works great, but wish there was more contrast between "Clean" and "Dirty"
Pros:
 - Doesn't require metal dishwasher paneling (like the magnetic indicators)
 - Small and unobtrusive
Cons:
 - No noticeable distinction between clean and dirty text

Sine my dishwasher isn't metal, the magnetic indicators were not an option. And suction mounts vary so much in quality I didn't want to risk it. This was the perfect solution. It works great. The sliding mechanism is stiff enough that it won't accidentally get switched if it's jarred, but it's not difficult to switch back and forth, either. My only complaint is that I wish there were more of a visible difference between the "Clean" and "Dirty" sides. Something like a different background color for "clean" would have made it much easier to see the state at a quick glance.