Honestly, I feel like it needs a way to tell you whether something's a novel or a comic when you use the search function. On top of that, I feel like it needs massive overhaul in the categorizing genres. It's so limited here compared to Webtoons, which even then, there's not that much more of a variety over there. The ability to tag a comic or novel with multiple genres is important, too.
Currently you can only choose between Action, BL, Comedy, Drama, Fantasy, Gaming, Horror, Mystery, Romance, Sci-fi, and Slice of Life. This barely covers anything considering the variety of subgenres there are. I'd personally add 18+/ Mature, Adventure, Animals, Crime, Detective, GL, Harem, Historical, Josei, LGBT+, Mecha, Military, Music, Novella, One-shot, Poetry, Post-Apocalytic, Psychological, School, Seinen, Sports, Shounen, Shoujo, Superhero, Supernatural, Thriller, and Zombie. But uhhh, that's just me.
Lastly, just a simple function to add images to a novel.. that Firefox method is asinine, like they allow images, but so long as you use a different browser and don't use Ctrl + V to do it.