Okay, it's not as though the Count of Monte Cristo is, you know, realistic as stories go so I don't think that's my main critique. I think I just wanted the main characters to be having a little more fun than they were actually having. 
If you're going to get absolute revenge, it should be FUN. And then you rethink and realize It's not as fulfilling as you thought it was going to be etc. I wanted more of "I thought this would feel better" and less outside manipulation into forcing our heroine's hands. I think, overall, it was the lack of agency that frustrated me so much, especially with the gender swap. Don't make Edmund Dantes a girl and then give her less power over her life. 
I still want to know what happens, though. This might be one of those books where, once the plot of the original starts to run out, the story gets more interesting (as opposed to Austen retellings which inevitably get less interesting if they go on past the books.)