I bought two of these cases, one black and the other red. I read all of the bad reviews about the buttons, so I checked the case out at the store before buying it. The case I picked up felt good in my hands and the buttons all worked smoothly and without any issues at all, so I decided to go ahead and buy it with my new phone. A week or so later I noticed that the red case was on sale during Black Friday weekend, so I purchased it as well, but I bought it online. After it arrived in the mail, I noticed that the buttons on it were really hard to push, so I took both cases apart to see what the differences were between them. After removing the black inner inserts on both cases (which was kinda difficult), I noticed that the buttons on the black case had a see through slit along the lower length of the bottom edge of the volume buttons and the sleep button, which freed them up to work properly, but the red case had the buttons molded in solidly without any slits at all. I took an Exacto knife (razor blade) and put a slit under the bottom edge along the length and slightly up both sides of the buttons and created the same see through slit that was on the black case liner, then reinserted the inner liner back into the red case. The buttons on both cases now work flawlessly. The cases are a bit slick though, so I don’t know what Speck means by a sturdy grip because they’re actually kinda slippery. I don’t know why Speck hasn’t resolved the button issues on all of their sport cases. Overall I really do like these cases.