Hollow Knight is really good but the main problem is the ammount of lost progress and tediousness that comes with it. Image you want to fight with a boss but everytime you lose you have to go across the whole map to reach him, getting frustrated along the way because you're trying to avoid enemies and hasten the platforming and maybe dying even along the way. There really should be waypoints before big fights, so you can just focus on the fight ahead of you. Other than that, it is a really good game, but I can't help but feel this problem add another 50 % for the play time.