I've been using one on my 6 Plus since launch and to be honest I'm not terribly impressed with it. It does add too much bulk plus the parts that cover the volume and on/off buttons are stiff and make it hard to press them. Apparently Spigen has acknowledged this and is sending out inserts that supposedly resolve this issue but it shouldn't be an issue in the first place. The case also scratches very easily on the back. As soo as I can get a better case mine is coming off and going in the bin. I don't recommend it.