I think I am officially "cased out." With the exception of Bullstrap, it seems all the leather cases are made by the same company and just rebranded. I have a Bare, Decoded, Andar, Mujjo and Bullstrap.
Andar: Nice but so tight I'm afraid of bending the phone when I take it off. Buttons a little sharp but not bad.
Bare: Great leather work--very sharp edges on buttons.
Decoded: About like the others. Buttons not too sharp anyway.
Mujjo: Ditto. Buttons OK.
All the above also have buttons that work fine, but stick out further than I would prefer.
If I want leather I am sticking with Bullstrap. The buttons are not out so far. Open bottom so easy to remove. (I would prefer a closed bottom that was easy to remove) The camera protection rim is leather so it does not scratch the desk. On average I drop my phone on a concrete floor about once a year (Doh!). Bullstrap has protected them with only scuffed leather.
But my favorite case by far is the Apple Silicone. Feels great, not too thick, and buttons are just what I want.