I like Giselle and I'd like to do more with her, but as a character she's going to need some juggling between good traits and whatever traits make her a person who responds to being snitched on with "spend a week plotting complex revenge schemes".
The refreshment attendants, Brad (glasses with poofy hair) and Sammy (mohawk and stretched ear lobes) are from one of my really early attempts at a webcomic project about four roomates in a college dorm. It was pretty bad, so it's not online anymore. Just mentioning it for trivia.