I bought one of these as a possible alternative to my iPad holder, butI don't have the confidence in it's strength to stay adjusted. It's great for lightweight paper charts, but the iPad needs a rock solid holder to make me feel secure. Maybe mine didn't have the right adjustment, but I had it tightened alot, and it was still very easy to tilt ... in the wrong way. Test carefully - especially if you're using the new, larger tablets.