Excerpt: Got the K-5 as my first DSLR. I've been shooting film SLR's for 3 years prior to this purchase and, besides my old Pentax ME being my favorite, I chose the K-5 for the weather proofing and compatibility with my already owned lenses, features that I couldn't get with any other manufacturers.
Pros: Fast and easy menus, great image quality, weather proof, easy to customize.
Cons: No manual video mode, no tether without 3rd party software.
Summary: This is the first DSLR that I have owned so I don't really have any experiences with other cameras but the features and settings are easy to access and use. I've had this camera for about 3-4 weeks now and I'm still Learning about the capabilities of this camera.
Summary: So,I will not reinvent the wheel. Read the glowing reviews of this camera and take everyone's word for it. This camera rocks. I bought this camera for three reasons. 1) It's a Pentax and I have been happy with Pentax since I bought a Spotmatic in the early seventies. 2) Some of the forum reviews thought the K-5ii feature set wasn't worth the higher price vs.
Summary: I wanted to try out a D SLR camera did some research and liked the fact that this camera has some weather resistance and where i am at that is plus. I only messed with the camera a few times now ( just got it) and I love it still messing around with all the features that I can do and still finding new ones. The kit lens may not be the best but for starting out it is great. Good to learn on and pratice till you find what you really want to use the camera for.
Summary: I started in photography 1 year ago with a Sony Alpha a57 and I thought that it was a very good product because it has good characterist to take good pictures and also has other extra features like 12 fps, HD Video, Panoramic, 3D photos, etc. Then... I found Pentax and I love it since the first time I hold it on my hand. You will loose the extra features I mentioned but will have and incredible quality upgrade of the picture you will take.
Summary: This is my 3rd Pentax DSLR, I started out on a Pentax k1000 in 1973, boy has technology changed. This camera takes amazing images and the burst mode takes awesome stop action shots if you have your shutter speed set to 250 or higher. I would definitely recommend this to someone upgrading from an older DSLR or as a first time camera.
Summary: K-5 is rugged, weatherproof on one hand and highly technologically sophisticated machine on the other. All functions are very ergonomically designed. User interface is just a dream. Make sure you don't skimp on high quality lenses so this beast will show it's claws. I own whole spectrum of prime Rokinons with K-mount ( amazing value for top notch glass) and IQ is breathtaking. I do not believe APS-C sensor based camera can be even more improved.