I've been playing it for a while. It's a good game but deeply, deeply flawed. And I mean beyond the atrocious optimisation and QA.
I mean probably the best example is the save system. The game autosaves as you advance quests (mostly....sometimes it doesn't). You can save by sleeping, but there's no manual save unless you possess and consume a special potion (which is pretty expensive). This is an odd, unintuitive and rather idiotic design decision. It adds nothing to immersion and all it does is incovenience the player for no good reason.
So of course, it got modded out within a day. Hurray!
Aside from that, it's typical eurojank. Expect to be absolute tripe at everything until you put a good 10-12 hours, although if you're good you can still win fights you shouldn't. For example, I defeated a fully armored knight with nothing but an arming sword and my intimate knowledge of the combo system. And also stabbing.
Melee combat is pretty deep. You got a stamina bar, you got five directions of attack, you got combos (and you unlock more combos as your weapon skill advances), it's pretty neat. Armor matters, a lot, as do shields (although I'm going light-ish armor and no shield and doing fine so far.) Bows are absolute murder machines once you level them, but until you do, good luck hitting anything further than five feet away. Aside from swaying like you were drunk off yer arse, there's no crosshair. Well, not unless you use a console command, of course!
Four stats (Strength, Agility, Vitality, Speech) and loads and loads of skills. You level these up like in the Elder Scrolls, by using them. The difference is that, while there's a general level, you don't build towards that by levelling skills, only stats. In essence, you could theoretically be General Level 1, Sword 8, though it's practically impossible since stats (except speech) go up fastest in combat. It does however avoid the Skyrim conundrum of levelling smithing and then having to face OP enemies, although the game already avoids this by having no level scaling.
Overall, as said, flawed gem. Give it a couple of months for patches and it will be a classic. Even what is there now is impressive, considering Warhorse's size and budget.