I’ll echo this. I was using a Mous Contour for a few weeks, but became irritated with the mushy buttons. Switched to the Speck Presidio Pro last Friday and have been loving it since. Buttons are firm, but not too firm. The case has just the right amount of grip, but doesn’t stick or collect lint in pockets.
I mentioned I love the Speck Presidio Pro. Great case. I also just picked up a Ghostek Cloak 4 in smoke. It’s $20 on Amazon. And it’s an awesome case. It’s thinner than the Speck but the sides of the case are flat and just more comfortable. It doesn’t have as deep of lip protection but you just have to see it in person. Really sleek case.