5-Minute Dungeon arrived today - totally unexpected!
I persuaded Mrs_Decar that she might like to give it a try. She loved the frantic co-op nature.
It took us a couple of goes to work out the mechanics, but we got it sussed and beat the first boss: The Baby Barbarian on our 4th attempt. It would have been our 3rd attempt, we were just one card away!
Will try and do a write up very soon - but it's 4-thumbs up from us