It is very easy to install and has the ability to be removed and reattached without coming off on its own. It protects the watch all around and not just the screen. The only drawbacks are: 1) when washing hands, it collects moisture sometimes and needs to be taken off and put back on, 2) with the case, it is not easy to use the rotating bezel, if not impossible. Of course, I don't think these could have been avoided in any way and they are necessary evils, considering what it offers, the drawbacks are almost insignificant.