The PNY Think Safe is with me for a week in use. I use the lock on a MacBook Air 13 "- my initial skepticism is now over. The sheet can be when the display really quite pops up and takes advantage of the gap between keyboard and display, very easy to install. Vemutlich holds the sheet no thief with real tools instead, but to deter opportunist thieves, it is sufficient sure. The small cloth bag for the castle is a nice idea and practical it is.
The only drawback is that the combination of the combination lock is fixed. Therefore, only 4 out of 5 stars because you look so again have to remember a new combination.