I like short games, so my issue with it definitely wasn't the length. I'm not sure what it was about this game that made me feel unhappy with it. I mean visually, it's great. I would've liked to see some animation in the clothing or something for the main character even though she floats around everywhere. But even without it, the game looks awesome.
There were a few problems with UI. Because the protagonist and all the other characters share the same text box color and presentation, it can be hard to tell who's talking. Yes, the dialogue boxes spawn above the speaking character, with the arrow pointing at the speaker, but when the game doesn't stop the player from standing on top of an NPC when a conversation is happening, you can misread an entire conversation because you can't know who's saying what. This wouldn't be as much of a problem if the translation wasn't so messy in some areas. Although, in all earnest, there's so little story anyway that it doesn't really matter. Also, the UI elements representing the two items you need to get appear in the corner before you're asked to get them, which was very confusing for me.
Also, not sure if it was done intentionally for comedic effect or not, but I really thought the two other characters in the 'box art' were gonna be important, but one only has one conversation with you and the other is literally a random guy from a group of guys who don't get individually named.