Personally, I think the Grip case is pretty ugly, but it works as advertised. Provides great protection and outstanding grip.
I bought the green one from Amazon for my Droid Turbo, but only used it randomly. I could not get past how unattractive the case was. I never had a thought about buying the Grip for my Droid Turbo2.
With that said...a guy at work has two of them and swears by them.