Very short TL;DR at the bottom.
I had a long detailed positive review of this game after a good five or ten hours playing. I had to edit this review, however. It was even better than I imagined.
The game starts out as a fun roguelike and it is immediately endearing. The static character sprites become of little concern with all the wonderful animated effects and amazing soundtrack. It seems initially like a well-done roguelike with some cool mechanics involved. I won't get into those mechanics because it would be too hard to explain them without ranting about how cool they are.
Shortly after grasping the game and being on your way in a fun roguelike, you become somewhat awed by how well the game plays and how neat the Academy building, nemesis system, soul-retrieving mechanics work. Then, once that shock starts to wear off, you'll notice the many dungeon themes, each with a whole set of mobs to go with the theme, and you'll start finding new themes. It's like a whole world of oldschool Dungeons and Dragons that's just thrown down for you to explore. Towns to bolster the prosperity of, bandit blockades to raid, Scrobold warrens, crypts, mage towers, it's all here.
Now, there's a few key points that I noticed.
No worrying about food or inventory limit. That's right, no worries on that. This irked me slightly at the outset, but I rationalized that inventory limits cause you to have to do a lot of backtracking and it gets boring tedious, not fun tedious. And there's a TON of loot to nab! So, removing the inventory limit was a smart move for this game. Well, with no inventory limit, then hunger becomes pointless as it won't be long before you can just shove a ton of rations in your pack and forget about hunger for a while. It might sound odd to oldschool roguelike players, but the ramoval of the hunger and inventory limit are actually very good for this game and it really works.
The loot system, while there's just a ton of stuff you're picking up, makes it very easy to manage the stuff you're actually interested in looking at as well as super easy to offload the stuff you don't want, through the clever use of tabs and sell/smelt selections when talking to shopkeeps/smiths.
The game also has a lot of really cool psuedo-hidden "secrets". Every town is worth exploring. At lower levels, it's easy to ignore towns and, indeed, ignore many of your consumables (not to say lower levels are easy, trust me), but as you start fighting higher level enemies, you start paying a lot more attention to what you're using and how you're using it and you start wishing you'd bought all those scrolls of combat blinking and pin to win, but you didn't need them back then. You'd better grab them up with the next character!
The combat itself defeats traditional roguelike standards in every way. The skills are all unique and build awesome characters and force you to truly pay attention to what spaces you're moving to. A fightermans doesn't just bump up against a mob until it dies - you have a number of special moves and you'd better make good use of them! What's more, you can customize your characters move sets and pick new skills from any class as you level. The classes are more like archetypes, really, just to give you a start, but you can choose a custom class as well.
There's a resource building mechanic so that future characters will be more successful, but you can opt to build up those resources and still not use them in the spirit of traditional roguelikes, but they're there if you want to give yourself an edge - and in such a way that you pick which edges you want and ignore the others.
There's a legacy system as well, but I won't try to explain it, just know that it's very very cool!
Procedural world, running legacies, themed dungeons - a - many, very tactical combat, tons of items and loot to find, towns to explore, libromancers to irritate, lots of enemies, champions, and named bosses, this game pretty much has it all!
TL;DR I honestly cannot give this game enough praise. It's hands-down the best roguelike I've ever played. If you like tile-based, grid-based roguelikes, DO NOT pass this game over!