At the end of the day, whether or not someone likes a story will depend a lot on personal preference. But there are definitely some things that really stand out to me in a good story! I really appreciate:
In terms of coding/writing:
-Proper spelling/grammar
-Well-timed zooms and animations (avoiding camera curving, character sliding)
-Including background characters in locations that would be busy, like clubs, etc.
In terms of content:
-Minimal introductory narration (ie. show me who the MC is, don’t tell me!)
-Slow/realistic romance vs. one where the MC and LI fall in love immediately
-A MC with a personality! Try to define some traits for them before you begin and it’ll be a lot easier to keep a strong character throughout the story
In my opinion the best thing you can do is re-read your own story until you can’t find anything wrong with it. Sometimes it’s helpful to take a break between writing a chapter and reading it. It kind of lets you view it as a reader. Good luck!