Quoted By:  
  Mori can be tolerable to good if she's just playing a game alone. (With exceptions, like when he has a giant chip on her shoulder for whatever reason.)
It's collabs where she starts becoming insufferable. Gura is the only one who can tardwrangle her, and even she is powerless if Mori is drunk off her ass.
I find it sad, because she does have potential. If she could just sort out her RL issues, stop injecting RM shit and start respecting her fellow Holos, she could be a great asset. I want to like her, but she's making it very hard.