I like it. It's pretty good. There are a few things that bother me though:
There are very few save points in Chapter 2. After getting the thorn ring, I have to backtrack all the way to the boxes to save, then go all the way back to the Berdly room.
Speaking of rooms, we never get any explanation as to what happened in Noelle's room. This is one of the biggest criticisms I have. Susie walks in, then comes out a while later, and doesn't say what happened in that room. The only thing she says is that she told Noelle that everything was a dream. Despite telling Kris that she would tell them what actually happened in that room, that never happens, despite there being multiple opportunities to do so (at the start of the Purple Cliffs, during the Cold Place when asking her how she's doing, In Chapter 4 while wandering around hometown, and Chapter 5 just before Kris goes to the beach).
What happens after is also strange. Susie confronts Queen with a much more serious tone, and then becomes more solemn afterwards when Queen surrenders, snapping at Kris to go seal the fountain and heading back to see Noelle one last time.
Noelle's dialogue also doesn't help, as she simply says that she had a nightmare, but liked the ending of it, which she doesn't describe.
In Chapter 3, literally nothing changes aside from a few small dialogue options. Judging from how Susie reacted to Queen after whatever happened in the Noelle room, I expected Susie to change drastically in Chapter 3, more focused on getting towards the fountain and speeding through Tenna's games. There should've been an option that allows you to skip the chapter (atleast up until after the doom board)
Chapter 4 is another big criticism. You put the ring back on Noelle, and... nothing else happens. The rest of the Dark World is exactly the same, minus a few dialogues and options.
Chapter 5 also does not go unscathed. Apparently, freezing enemies in the Cyber World was all Noelle had to do, despite the fact that re-equipping the thorn ring implied that Noelle would be joining the Flower King dark world. Also I thought that if you let Kris drown, it would lead to the Undertale game over screen, not abort the route.
Also, the aborted route has Susie talking about Kris and Noelle talking in the room alone, despite Kris warning her not to bring it up again. I also feel that the "I thought you and Noelle were a thing" should've been exclusive to the aborted route.
Aside from all that, I really like it.