Good luck! I'm sure Rachel will do fine. I haven't had to take either of my females in for a spay, since they were freshly spayed when I adopted them, but I know that Bailey did really well after his neutering (after the initial angry hissing toward me, but he's always been one of our two tempermental ones when it comes to the vet). He was back to normal within a few hours of us getting him home.

Rachel's recovery will of course take a while longer, since she is a female (why do we always get the more difficult health stuff, no matter the species?), but I have confidence that she'll come through with flying colors!