Yes, I have experience
Consider yourself lucky. I am a USC and my husband and I have waited nearly 3 years for our AOS interview.
After over 3 years of marriage and one 7 month old baby later, we finally have our AOS interview next Monday. We are extremely nervous but relieved at the same time. We have waited so long, we can't believe it is coming to an end. This board has been extremely helpful to know what to expect.
I started writing my senator and congressman last September when over 2 years had past and my husband was applying for his third EAD. I was seven months pregnant at the time and basically anxious about everything. The responses I received were that INS was doing its job, yours is in line, and please be patient and wait.
I had more personal interaction with my local congressman. Whenever I had a question concerning something, I would call or e-mail the staff worker. That is her job, to help USC with federal agencies. One day in April, I decided to make an impromptu personal appearance along with mother and my baby to my local congressman's office to introduce myself personally to the staff worker ask once again about our case. Within a week, his FP notice arrived. And within 3 weeks after that, our AOS notice arrived. Whether the events are connected, I will never know.
One advantage we see in waiting so long is that my husband will be granted a permanent resident card instead of the conditional one because we have been married over three years at the time of the AOS interview. He will not have to remove the condition and wait again with INS.
However, he would like to become a USC, and it is disheartening to know that the clock ticks for his three years of permanent residency after he is granted the passport stamp at the AOS interview. Despite the facts he has been married for over three years, waited for the green card for three years during that marriage, and has been living and working and paying taxes in this country as a student, then H-1 and then EAD for nearly 10, it is my understanding he must wait yet another three years (and then who knows how long after the application is filed ) until he can be naturalized. In this regard, I think the LIFE has to also address extraordinarily long processing times.
Good luck and don't give up!!!