I've downloaded it, but am saving it for Christmas. Reviews seem to range from good to excellent, so I'm really looking forward to it.
In related news, as you noted the sometimes unnatural dialogue, someone over at RPG codex has unlocked the original English dialogue in the game (apparently, somewhere between translation from Polish and voice-recording, a lot was cut, resulting in the unnatural bits you've found). Anyway, it appears from the discussion in the thread that it isn't really workable quite yet, because the game scripts are now out of sync with the dialogue, but they're optimistic that a modding effort will be able to fix this and make it work in the future).