Editing hell: Reaching a new plateau

Just when I think I'm crawling out of editing hell, something else pops in that brings me back. And with it a new level of editing hell. (How many levels are there?) You see, three days ago I received DianaC's critique and made the necessary grammar corrections she suggested. I'd not asked for a line-by-line critique so she didn't give me much feedback on the story, except for a very general impression on how hot the story is. *lol* Still I felt compelled to PMed her asking her how she felt about the hero and heroine, and if she'd found any plot holes. These plots holes came as a result of expanding upon the original story. Most of the recent critiquers found two major plot holes now in my story. One was the hero. Readers found him too elusive, like they couldn't get a grasp of who he is. Also that he accepted his new self too easily. The second one was the panic the heroine has at the beginning of the final chapter. I thought I'd covered the first plot hole, but according to DianaC's answer, obviously, I didn't. As for the second one, I'd divided the second chapter into two, expanding the first part with (yet another) flashback. Still, I thought I was pretty much done with editing. Well... guess what? As I went over the story one last time, I had this little nagging feeling that something still wasn't right with the story. I couldn't put my finger on exactly what though. I kept reading the story until it hit me. The setting. It was all wrong. For this new version of the story anyway. Why didn't any of the critiquers pick that up? *sighs* Now I have to change chapter 1 (if I'm that lucky!) Let me tell you, editing is a frustrating process, and any writer - regardless of their level of expertise - will tell you that. I'm amazed at how much a small story can change when you try to expand it. One scene can affect the whole story. Plot holes become larger than moon craters.