This is actually one of my favorite season one episodes, partially because Chandler was always my favorite Friend. I think Morgan Fairchild as his mom was great; and as people in their twenties, these characters still have parental things going opn, especially Chandler coming from the family he does. The story played out with Chandler, Nora and Ross, with Joey in there too, was good characterization. Joey doesn't like secrets, something that continues through the series, and he doesn't like lying. Great set up of that side of Joey. Ross is a loyal friend who is only human and will thus make mistakes, but he was truly sorry and felt truly horrible about it. As mad as Chandler got, he was forgiving. That's what this episode was about.
The Monica/Phoebe/Coma Guy subplot was just hilarious.