It's an enjoyable grid-based dungeon crawler that is very comparable to Legend of Grimrock. While combat is not as varied and the level design not quite as great as in Grimrock, it does offer more of a personal story. If you like the genre its definitely worth checking out.
The concept of card-based tactical combat in a rogue-lite setting is great and the first couple of hours can be very fun. The deckbuilding aspect with your 3 party members with different classes is enjoyable until you notice that there are several card combinations that are just broken and let you blaze through combat even on the highest difficulty. It doesnt help that there are stats that just dont work as intended and dont give all of their bonuses and later missions dont really play any different from earlier ones. If the devs put in a lot more work in terms of balancing and bug fixing this could still turn into a good game, but as it stands I cant recommend it.
As with most of Wadjet Eyes inhouse-developed games it is a nice Point & Click Adventure with good voice acting, a decent story and solid puzzles. Sadly it never reaches the brilliance of their externally developed games like Resonance, Gemini Rue, Technobabylon or Primordia. If you are a fan of the genre you still cant go wrong with Wadjet Eye Games.