I use it at the end of the day (if I am in the office) to force the changes if I am leaving the office since I have my Outlook set to empty the deleted folder on exit.
I am also impatient.
I've read the previous threads on how to fix a MISSING "Reconcile Now" selection from the Messages-Options-Email Reconciliation. However, none of them worked. I had it yesterday and now it's gone.