Having already tried various other cover for my SGS-Plus I9001, I am absolutely happy with this for over three months. It makes from the beginning a high-quality impression, fits still 100%, despite the fact that I pick up minimum once a week to clean the phone. As before, no sagging. The silicone bead - which give a non-slip feel - is also flawless and shine on - earlier cases were partly increasingly greasy. All in all, highly recommended!