LifeProof Case for iPhone 6

I recently upgraded to an iPhone 6 with Verizon. I told the store representative I wanted to also upgrade my Otterbox Defender. I had tried a LifeProof case with a previous model and did not particularly like it. He was so insistent that vast improvements had been made that he finally talked me into paying $99.00 for the latest and greatest LifeProof case. This model allows direct contact with the front surface of the phone, which does make it easier to do Voiceover gestures. The case also has a screw that goes into the headphone jack when not in use, and the screw is attached by a plastic strip so it cannot be lost; that's an improvement over a previous model of the case.
The case is certainly thinner than an Otterbox, and that is a plus.
Now I'd like to list what I dislike about the new case and why I have gone back to using an Otterbox Defender.
LifeProof does not protect the front glass surface of the phone, in spite of what the sales rep told me.
The sound of VoiceOver and anything else played through the phone's speaker is distorted and muffled. I found that opening the little door where the Lightning connector plugs in helps some, but it's still muffled.
It is necessary to have a special little adapter cable connected between the headset plug and the phone. The other end of the adapter screws into the case for a water-tight connection.
While I like the idea of a waterproof case, all of the other factors outweigh the advantages of that for me.
Contrary to what the salesman told me, I am not convinced the LifeProof case protects the phone as well as the thicker Otterbox Defender. I am more likely to drop the phone on a cement floor than I am to immerse it in water, so I feel the need of more shock protection.

I feel the LifeProof case is vastly over-priced and vastly over-rated. I was foolish for allowing the salesman to talk me into purchasing one.