When Kingdom Come was first released, I read many warnings to avoid the game until bugs were fixed. So bear in mind, my review is for the completed end product, and an experience lightened with a mod that allowed for unlimited saves. I was in no mood to play a heavily bogged down game because I have a full-time job, and didn't want to be too overwhelmed.
With the game fully patched now, I didn't experience a single bug the whole way through, which probably partially colors my extremely positive score. I've also never had any problems saving when I wanted to due to the mod. Given these two per-requisites, I have to say, I really really enjoyed Kingdom Come Deliverance. It's really a game of its own kind, and I thoroughly enjoyed its rags-to-riches kind of story and gameplay. You start our extremely weak and confused, and end the game very experienced and masterful. It's really a one of a kind experience that few other games can deliver on.
The story and characters are fantastic; it's hard to find games this immersive. The fact that the game can be modded easily makes things even better; want to make it so you can save anytime, easy. Want to increase your inventory weight limit, also easy. This game, especially after patches that made it extremely stable, can be fairly stress-free and very fun, given that you can custom tweak your own personal experience. The gameplay is also really enjoyable; it really makes you feel like you are actually getting better at sword-fighting / lock-picking. The perk system is also perfectly scaled so you don't feel overpowered, but at the same time, more powerful as the game goes on.
Few games that I've played really make me feel like I'm in a real, breathing world. Kingdom Come is one of these games, and I really hope there are more immersive, well-written games like this one in the future.