More than one thing, but I'll try to make the list even so that for everything thing I dislike, there's something I like, too :3
Likes:
Easy to upload, scheduling, really user friendly (I think)
Layout of site is nice and organized
Side bar for pages so no need for an archive
I like that the comic can be monetized either through ink or through ads. I like that there are options that allow viewer to earn ink so they aren't paying out of pocket. That's pretty cool. I don't like ads, but if it's a choice, that's far-out and solid
Dislikes:
I dislike how if I have accidentally clicked too far ahead in a comic, but haven't read that far, eveytime I go to the page I see spoilers (this is my own fault, but I can't undo it XD)
How many readers you need before you can make revenue. It's like they think the smaller number of viewers aren't important: they're still seeing the ads, yo! Just a nit pick on my part. I LOVE all my readers, no matter what my sub count is
The comments get abbreviated. I don't know, I just like being able to see the whole thing without having to click "read more" I know I'm often in a hurry and miss the rest of people's comments because I don't click that. For the author, I know some people are amazing and click on it to read the rest. For me, I'm terrible and forget or scan past 'cause I'm in a hurry :*(
I dislike how the forum has to be accessed from the front page (or is this just me?) It's just annoying. There should be a button even when you're reading comics (in my opinion.) I could just be a newb and missing it, though XD I do not see an easy way to get to my comic from the forum, either. They're like...the same company/platform, so I think this is a bit strange to make a person have to take extra steps to get to each part.