I had my first doula baby born since I gave birth myself. It was awesome, the mom did great (7 hours of active labor and 20 min of pushing for her first baby!) And I got to cut the cord, which was fun, since I will probably never cut my own cord. Things worked out really well with getting childcare for T, which was a huge concern.
I forgot how exciting childbirth is when you aren't the one giving birth!