Originally posted by mikesbike A major goal for the design of the KP was to complement the Limited primes, both in best possible image quality and in high build quality with compactness. The concept of quality with compactness go hand in hand (literally) with the KP and Limiteds. I have found this to be true in actual use!
With the very compact Limiteds, you really do not need much if any grip for good balance in handling. The classic MF compact Pentax 35mm film SLR bodies had a very small or no grip, and were delightful with a compact or pancake-type lens. The supplied KP grips allow some latitude here for holding by different hands. The KP also has a far better set of controls than a K-S2, (which I also have and like) or a K-70, for quicker handling, a better SR system, and the availability of a battery grip for better balance with larger lenses as well as long battery life for lengthy events shooting or verticals.
I am well used to the old film SLRs. Having ME Super, MX and compact ones from other manufacturers. I am not too bothered about the supposed superior controls of the KP, as I intend to use the camera for almost exclusive use with the Ltd primes in aperture priority, so as long as exposure compensation, ISO, aperture controls and back button AF are easily accessible I will be happy. As far as I can tell they are on all three cameras, as they are on my K3. The appeal of the KP, to me, is really its better build quality, but I am far from convinced it is worth around double the price of the K70 or K-S2. As you are the fortunate owner of both the KP and the K-S2, perhaps you could share some further thoughts. Especially as you also like the K-S2. One of the appeals of the K70/K-S2 apart from price, is the FULLY articulating screen, which I know I will find useful on occasion.