I sent my AOS in april 4th 2013 ,got rfe1 in September because we forgot to sent the vaccination records ,rfe #2 in January 4th 2014 ,had to make medical examination and in 27 January 2014 we got home a welcome in usa mail telling us that we where approved and I will got my green card home in 3 weeks.Today I checked the mail and my green card was there .So I got mine without any interview .good luck to everybody!