I have a 9 pro and it was very slippery at first. I put it face down on a slanted table and it slid right off once.
Anyway, I took the case off after a while. It's not new anymore. Your mileage may vary, but despite dropping it a bunch, it hasn't shattered and the edge only shows some slight marks from falling.
Anyway, I took the case off after a while. It's not new anymore. Your mileage may vary, but despite dropping it a bunch, it hasn't shattered and the edge only shows some slight marks from falling.