The writers really mailed this one in. Figuring that since both John DeLancie and Jennifer Hetrick were making guest appearances, they didn't actually bother writing a good story. This means we get the weakest Q episode since "Hide and Q" - and ironically, it comes only a few weeks before the very best ("Tapestry").
All of Q's characteristics are completely overplayed here - the snickering jokes about humanity and his human companion, the non-stop references to TNG. Vash displays some of her charisma, but also shows that without Picard as a foil she's a rather uninteresting character.
Feel free to skip this one.