I personally loved this chapter! Not that I considered the others bad, but this one really shows Allen's inner struggles.
He wants to be an exorcist but how easy can it be for him to be with those who abuse him and lock him up like an animal?? He's a confused kid who's encountered people (Road and Tykki) who actually show some care towards him, so of course he's going to follow them like a lost puppy! (despite the hatred toward him from the other Noah)
I'm looking forward to the next chapter, which will hopefully show how Komui et.al feel about Allen's escape and the repercussions of his status becoming that of a Noah. Or show Allen's introduction into the Noah world! =D
Other than that, this is my first post ever and I'm proud it is for D.gray-man and for such a cool chapter too XD