Never really gotten into dungeon crawlers, but this one caught my attention because you're only controlling one character (like in Neverwinter Nights, don't like party RPGs) with easy keyboard/mouse interaction & it isn't as hard that most of the ones I've tried in the past, thus losing the interest in the first place.
As AWaterKnight stated, missing resting option & minor HP regeneration are bad, bad things, but then again you'll find more than plenty healing items/spells/altars to make up for that.
Always disliked respawning monsters in games, so that's also a plus.
Key searching/quest advance item search can be annoying, but after I've done my first playthrough, I'll be making complete maps including each & every major/important item.
...The spells are also expensive and they should have sped up casting and prevented players from wasting their mana when they cannot finish the spell.
You mean the spell system being clumsy in the latter part? Did that error a couple times.
I for one find Anvil of Dawn quite relaxing timewaster, there's no rush anywhere & one can sort out their inventory & advance the quest on their own pace & the puzzles do not make you insane. 9/10