I have had parents-in-law twice,and sister,brother-in-law over a 14 year period and today just got the call this morning that the youngest brother got his visa this morning.
There were some problems along the way, but they were resolved, and i always insisted that they return home at the tail end of their visa in case it causes problems down the line for other applications.
Apart from trying to help a cousin while in Manila, and attending the embassy with her, and given the green light only for her to be refused after I had left, I have found the Embassy staff to be O.K. Others have different experiances though. <_<
Peter