One of the better grid-based first-person rpg I've played so far.
It probably had a fraction of the development resources other similar games had and while it shows in certain areas (the game has a single town, you control a single character, there are two terrain types: above ground and dungeons, the monsters don't have graphics outside of combat), it may very well be best game the genre has ever seen in terms of gamer enjoyment per unit of development labor.
By playing on reach, distance, stamina, many spells and other mechanics, the combat in this game has more depth than other games of the genre I recall playing. The monsters are also extremely well drawn and many of them are genuinely disturbing.
The terrain is limited, but suitably drab and spooky. The soundtrack, while not wildly varied, is very serviceable and renders the mood of the game well.
Like other games of the genre, you character levels up which affects stats, but separately from this, your skills level-up with usage which, as there are many skills, gives you a constant feeling of progression with the game. Not all skills are equal, but there are no truly useless skills in the game. Lockpicking, while vital and interesting at first, can become tedious and is slow to progress (I would have doubled the rate of progression for that skill and doubled the metal cost of lockpicks), but that's my only nitpick for skills.
The difficulty of the game is uneven and heavily slanted toward the early part of the game. There are a couple of skills and stats that are vital. The game will be extremely hard until you level those up and will become progressively easier after that until you become the equivalent of an unkillable god towards the end, especially if you do some limbo levels (which are tempting to level-up your lockpick).
While the game will level you, my advise is not to grind at all. Don't do the limbo, don't get max trust level: walz through the game while it is at least somewhat challenging.