I have the same one as Mindi and love it. It is a bit expensive, but worth it. I posted more details in the iPhone 6 case thread, but the best part is the snug fit and soft interior. Most cases are just plastic, which inevitably allow dust and debris in the cracks, then the case grinds it against the phone causing scratches. I don't think that'll be an issue with apple's cases.
I would have preferred brown leather, but didn't care for the shade of brown they have.
I'm not that concerned because the corners are still protected. If you drop it, the material on the corners will protect the whole bottom. Ideally there would be precision cutouts, but like Mindi said, the open bottom also allows greater compatibility with third party accessories.
Now I'm really looking forward to getting mine. Ordered from Best Buy for $39.99 for the iPhone 6, Black. It's the only one they have in stock to ship right now...none in store. It's $5 off! The iPhone 6 Plus is $49.99.
I had the 5S leather case...I've never used a case that long, but it was always my default with a few time using a slightly more durable case on trips.
I currently have a Spigen Neo Hybrid on my 6 and I like it, but I miss the leather.
I actually found an Apple Leather Case for my 6 locally at Best Buy, so I bought it today. The one I ordered will be returned. Found out I had a $10 certificate, so even better...$29! LOVE it. Don't know what I was thinking. The Spigen Neo Hybrid will be great for a more robust case, but this one is MUCH BETTER.
I thought I'd let you see a case I got on eBay that I got for my football team, the 49ers. It's a GREAT case for $20 shipped. It's a rubber/TPU/synthetic case, but has a leather-like distressed look. I'm pretty impressed. I also took a pic of the front so everyone can see what the Zagg Glass looks like on the 6. You can totally tell it's there, but it doesn't bother me.
Here's some pics (don't mind my leg...only way I could get a pic of the ports).