The platforming in Fez is mostly pretty easy, though the puzzles can be rough until you figure them out. Not even like they are in something like The Witness, because at least with that you 'get' the mechanic and go from there. Fez has mechanics to get, but so much more beyond that. Make sure to have a notebook while playing! Fez is probably the best game of last gen, or right up there with RDR, and certainly in convo quality wise with Meatboy and Spelunky for best 'indie' game. All are definitely a top four in some capacity.
EDIT: Also finished a run in Slay The Spire today. Used The Silent or whatever that character is called, as it seems to easily be the best one. The nuts thing is that I unlocked her for my second ever run and, as it turns out, made it three rooms from the end on that second attempt. Took a while to get back there though.