Have ~103 hours on WiiU edition.
Shovel Knight is by far my favorite game. Great gameplay and story in all 4 campaigns, plus Shovel Knight Showdown as a bonus. It's seriously worth playing all games in the franchise all the way through, and if you've beaten them: get all of the achievements. Additionally, got Treasure Trove as a free upgrade to original Shovel Knight, so paid for 1 game and got 5 in return.
10/10