I think their leather cases are fantastic, I've had one on my 5S since launch, and my iPad Mini Retina. They feel nice, the inside is nice and soft, and as they age they look better and better (because leather).
See
https://www.icloud.com/photostream/#A2GFssfGFJ1RE for the 6 case. I agree that not having the ports covered at the bottom looks a bit odd, but I can tell you from the 5S case that the holes are dust magnets! (Edit: and sometimes they interfere with accessories. The lightning-30pin non-cable adapter doesn't fit and on my mini the HDMI adapter doesn't quite fit without a bit of jiggling. So overall I'm in favour of leaving the bottom free).