|The writing and options on this particular story are generally solid but unspectacular, and would fly with the average reader without too many complaints.
However, there is definitely some room for improvement. As mentioned, the writing in the average chapter is not particular standout, and I don't see this tale having any entertainment value to anyone who does not subscribe to the fetish it endorses. Of course, that's all well and good if one wants to aim for that, but there is much more enjoyment to be found in trying to make a tale at least carry some interest to a casual reader.
A big flaw in particular in that regard is that this story does not have its own identity. There is no particular gimmick or hook to set it aside as different from the average diaper tale, and the characters and situations are not terribly compelling. This primarily comes across due to the lack of a defining plot - the events of the story at its outset are just because they are, and while one attempt has been made to carve out a genuine lengthy plot it has not gone far nor is it anything completely original.
All in all, I'd say the story is flawed but perfectly suitable enough for those who have an interest in the genre more than they do creative plots and characters.