The iSaver2 is a funny idea for the protection of the display as well as for easy cleaning of the display. The MacOS Shortcuts are great and give you the opportunity the Shortcuts always at hand to have.
Unfortunately, the edges of the iSaver2 are not processed cleanly in my case. The rubber coating one side acts "demolished" because of cutting probably was not clean. Due to this small defect I forgive 3 stars.