The most negative review on Metacritic, which gives the game a 40, ends with, "As it stands, RAD will likely please roguelike aficionados who will forgive ill-conceived gameplay ideas because of the challenge it adds to the experience."
So it's basically saying, if you enjoy the genre, you will like it. But if you don't like the genre...you will not like it.
Thanks, very informative.
But what is the game like?
This game, not the entirety of the ~40 year history of roguelikes.