I've been buying Otter-box defenders since they first came out. I get a new phone yearly, and each year this is the case I go for. I have tried others both more expensive (life-proof) and a lot of cheaper. They all do well, but nothing compares to the Otter-box. The issue I have is the outside layer (rubber) will stretch. At first I thought it was because I would take my phone out of case sometimes, and then put it back in. But my last phone, S7 edge, I never took out, and only had it for 6 months. And the rubber becomes really loose, the corners don't stay in and tight with the hard plastic inside layer, the back becomes very loose with a large gap between outside rubber layer and inside plastic layer, especially around the camera, and lets dirt and everything inside. Doesn't hurt the phone, but looks bad. And it gets bad enough where the rubber layer peels off the phone when you pull the phone out of your pocket.
Otter-box will (on your dime around $7) ship you a replacement rubber layer, takes 4-6 weeks. Which is nice, but a hassle, and takes over a month.
This has been an issue since their first cases, and every case in between (about 6 years). And even with this issue, I still buy, would recommend, and will continue using.