Angelica was under the impression that she had finished lugging her trunk into dormitories when she graduated from Hogwarts, but needs must. This room, at least, looks much nicer than a Hogwarts dorm room. More Muggle, too, which was always a plus; it had actual technology in it, and technology that appeared to be significantly more advanced than the stuff from her Earth, at that. 

The storage spaces she discovers are full of an eminently satisfying array of nooks and crannies in which to conceal things, too, which is excellent. She stashes an array of potions and charmed trinkets in places that would take someone else a while to discover, and begins hanging up her clothing in the wardrobe.