I know some KP users are fond of larger lenses but I don't number myself among them: my lenses range from the minuscule (DA 40 Ltd) to the smallish pancake (DA 21mm Ltd) to my seemingly enormous DA 10-17mm fisheye zoom (which to my surprise was barely larger than another Rokinon fisheye I used to own for a micro-four-thirds camera). None of which require either a larger battery grip or the largest size interchangeable grip that the camera came with.
All in all, from my perspective - as a former K200d user who has now sold his K200d and totally converted to being a quite happy (so far) KP fan(atic) and user, the camera is doing quite nicely in the two areas I was initially worried (or wondering) about---color rendition....and OVF viewfinder brilliance-general usability.
The RAW (DNG) files from my KP are every bit as good as those from my old K200d (which, I have to say, again, weren't merely good but, between 100-200 ISO, were superb) --- and the Pentaprism is slightly-but-noticeably brighter than that of the K200d's supposedly inferior pentamirror. Though, truth be told, in my side-by-side comparison viewings with the KP and the K200d, it (the Pentaprism) wasn't ALL that much brighter (to my eyes, at least) than its (pentamirror) K200d sibling.
Bottom line: in my admittedly prejudiced opinion, it (my KP) is a beautifully designed camera.....which is delivering fine images.
This one was taken with the DA 40.