It takes a while to get to know Saraiel, but the biggest two things to know are that she's earnest and adventurous. Of course she's also lovable, cooperative and responsive, but those are often overshadowed by tendencies of being crude as well.
Her earnestness though, this is what she's so well-liked for. Friends usually count on this and her surprising nature in times of need.
Nobody's perfect of course and Saraiel has plenty of lesser desired aspects too. Her childish nature and crude ways risk ruining pleasant moods, both personally and for others.
Fortunately her adventurous nature helps prevent most of these grievances.
Spirits were once one with all physical things; every mountain, tree and insect had power and sentience. But something happened long ago, before even the werewolves remember, to create an invisible wall called the Gauntlet between the spiritual and the physical worlds. On their side of the Gauntlet, in the Umbra, the spirits live on. They are as diverse, wondrous, and nightmarish a class of being as any can imagine -- ranging from tiny harmless Gafflings like motes of dust in moonlight, to Celestines as vast as planets, to whom the Garou are like dust-Gafflings themselves.