The back end of the campaign certainly does feature a lot of identical corridors, truly exciting stuff. Cracking grappling hook, too short by about 1/2.
I found the initial card game too random for my tastes (I don't want to replay a section over and over if I understand what's being asked of me), but let's just say there's plenty more in there to grab your attention.
I don't think I can be trusted about this one. Disregard anything I say since this game pressed itself into my brain while it was still soft and squishy. That said, it's the best puzzle game ever made.
YMMV dependent on how you feel about DnD 5th edition, but this really worked for me. An appetising little dungeon crawling snack, with the promise of even better things to come if the modding scene gets off the ground.