Awesome! One thing I’d like to add is that she will get the automatic 1 percent matching after 60 days of service but she won’t get the full 5 percent matching till two years of service. Fully maxing her TSP might be difficult till she is around a 1 Lt. The additional matching in effect let’s you go over the contribution limit of 22.5k— but they are Traditional contributions by default for the matching.
Good resource for the BRS plan summed up :
https://militarypay.defense.gov/Portals/3/Documents/BlendedRetirementDocuments/BRS New Accessions Course/Uniformed Services Guide to BRS.pdf