No, don't get m wrong, I love the classic tileset when it's used well. The classic tile has a charm when used in modern-day quests that just brings a certain giddiness to me.
The problem is this quest is calling itself Zelda 3, yet makes 0 improvements over it's two predecessors. There are romhacks and even quests out here more fitting of the title of "Zelda 3 if LttP isn't Zelda 3". Link and Zelda, for example, while it is incredibly easy, felt more like Zelda 3 than whatever this... abomination is. This quest has everything a terrible quest needs: random pseudokaizo enemy placement (pseudokaizo, because Kaizo implies clever enemy placement for difficulty, this just spams everything + the kitchen sink). Zelda 1 and 2 weren't kaizo. They were unforgiving, yes, but once you figured them out they weren't unfair. This quest just feels like the creator played Zelda 2 and sucked at it, and decided "since Nintendo made a bullshit game, I'mma make one too!" (protip: they made a wonderful but underappreciated game).
Unrelated James, but you're a fan of the first Zelda and it's difficulty, yes? You should try out a collab 1st quest remake I'm making with FireSeraphim called Hyrule Fantasy. It tries to follow the spirit of Zelda 1's difficulty and can be pretty brutal, *especially* once you reach the infamous level 6 >: D
You can find a beta containing the first 6 dungeons on Pure in the 2017 expo if you wish to try it.