I can understand why some hate the combat but it's simply a matter of getting gud. Personally, I would've went with 3rd person combat in the vein of Hellish Quart, but Kingdom Come's combat is perfectly playable once you understand the mechanics. I admit, the controls are easy to forget if you're not constantly playing, so it's brutal to jump back in if you decide to take a break.
Great game though. I hope they announce a sequel, or at least a new project soon. As long as Daniel Vavra is involved, it's guaranteed to be a good experience.