Like I said in the other topic, this episode didn't really hook me. The initial scene was good, but coming after Smile's last few weeks doesn't stand out much.
In the main narrative itself, I just didn't like the tone they took. It was light hearted and they had introductions and story going on, but it was rarely actually humorous or genuinelly dramatic. They show absurd situations in ways that could easily have been played for laughs but mostly just did it straight, resulting in a very average introduction that just didn't do much to me.
The monster of the week itself is the biggest example of the flaws of DokiDoki's first episode. It was created due to frustrations with a line, and basically the only thing it did was rush around, running into anyone on its path. That's so ridiculous you'd think it'd be played for laughs, but there just isn't humor there. On the other hand, it's also not really dramatic or anything, just coming of as bland.
I liked the "henshin" moment though, and really wish the show had attempted to throw more humor. The designs of the main villains were decent though, better than (most of) Smile's and Suite's at least, but I just hope the show won't stay stuck in the bland middle point where it was during most of this initial episode.
In what god damn way is she a Mary Sue?
Does a character have to be a walking buffoon like Miyuki not to be called a Mary Sue?
She's skilled in all areas and activities (the club scene), she's loved by everyone, is the moral compass of the series, outshines the veteran Cure... There's a huge middle ground between Mana and Miyuki. Now,
I wouldn't call her a Mary Sue, but there are characters who are called Sues for less...