I first played Rogue Legacy as a PS4 demo at Target in 2013, and ever since I've been enchanted by the idea of rogue-likes. When I finally bought the game in 2015, I played on-and-off for about 20 hours or so and then gave up, having believed Khidr was something I'd need to grind for. When I came back last month, I went straight to Khidr and absolutely stomped the poor fool. And then I proceeded to stomp the Forest. The game lets you get away with grinding to a stupid level, and after 3 hours you'll have seen all of the procedurally generated rooms.
This was only compounded by the fact that this game has a total of 3 classes worth a damn: the Shinobi/Hokage, the Miner/Spelunker, and the Mage/Archmage. Close quarters combat is a sometimes-food. You'll have enough Mana and enough potions laying around to replenish your spam, which expedites this already relatively easy game, and the ability to choose between 2 sets of 3 spells where one is ridiculously good and the other sucks lobotomizes the game. I beat every boss by pulling out the spikes or the flamewheel as an Archmage.
The Spelunker is a weak class, but it sure doesn't need to stick around long. You can bum around the Castle and receive more than enough loot. I was never incentivized to push into the Maya or the otherwise more weighty regions because the opportunity for loot in them was too low just by design. Oh, but magic will save you if your sword damage is still lacking.
The Hokage is admittedly a class that you'll never use once you've upgraded your Mana enough, but it's yet another class to rush through the early game. I will also say that this class is infinitely superior to the Assassin, because crits should never be a core design concept.
Every other class is rendered worthless in comparison due to their lack of mobility or the amount of time it takes to whack at an enemy.

I really love this game, and I still do, but it just didn't balance itself too well. It helped the genre a ton, and I can appreciate that, but the core gameplay loop gets boring after beating the way-too-easy final boss. Rogue Legacy 2 seems to still be barren as well, unfortunately.