Posting from my iPhone 6. It's glorious. Much better to type on than the 5/5S, even for someone with hands on the smaller side.
I'm generally anti-case but picked up a while silicon case. I ended up taking it off of the phone before I even left the store. It's a pretty nice case, but it's a lint magnet and kills the curved glass, which is a really nice feature on the new phone. On the other hand, the camera protrudes and I'm naturally paranoid about the phone because it's brand new. Not sure what to do, but I think I might return it.