Again, and I cannot stress this enough, you should be working through the employee who authorized the pass on this.
That sums up the extent of wise counsel you should expect on this board about this topic. The community is holding back a bit compared to past posts about BPs.
As a Companion Pass card holder myself, I agree with all that
us2 said especially what was quoted above.
Be flexible, be patient, note embargo dates, demand nothing, be thankful for whatever you get, ask not for mileage credit, never check a bag and Good Luck!