These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Marty Stu: Win. He's Carmen's dream guy and a Satellite Love Interest who doesn't seem to have any real flaws. When Carmen comes clean about her dishonesty and tells him she can often be a mean, bratty person, he comes clean too. His flaw is that... he used to be fat. Even Carmen seems briefly baffled by this.
Sequelitis: The first four books are pretty well-liked, but almost anyone who's actually read the sequels prefers to forget them.