Welcome aboard my thread!
Mine arrived last night. WOW.
I had imagined it was a K-7 / K-5 with a different sensor, because it looks very similar in photos. It's not. It's a massive jump in quality, in every regard, especially the build quality. Which is all the more surprising, because the quality of the body is what I liked about my K-7. If you have ever picked up a D7100 or the similar current canon, you would think they were made from the thinnest plastic.
First thing going through my mind when I turned it on, was: 'so glad I decided to stick with pentax.' Also, very glad I didn't go mirror less. This is way better.
Anyway, every other aspect appears vastly improved too.
Doesn't get tricked by tungsten light, low light, exposes correctly for backlit subjects, autofocus makes all my lenses handle completely like new lenses. Even my old FA lens.
Can't wait for the weekend! Raving!!