The only annoyance that any of ya'll said that I feel has any real weight of merit to it is how the currency of the tools work. That gets that much more annoying that when fighting bosses, the minions don't drop any currency at all, not even that and that you can't refill your tools outside of on benches and only when you have that shards to do so. That and that they take quite a bit, if you die constantly during boss fights or gauntlets, you will be short of them really quickly.
All the other complaints, like level design/platforming segments, teleports, enemy design, benches-to-rosarie costs, etc., sounds more git gud status than being that egregious to me.
This isnt harder than Hollow Knight imo, and most bosses are way more beatable on your first try than a Souls game. I have 2 of the songs in Act 2 and have done a good amount of side stuff and its a solid challenge but nothing crazy.