Wife with F-1 study visa; we submitted I-130 and I-485 received Chicago lockbox May 30, 2012. Biometry about 6 weeks later. No RFEs.
Had a few complications early on after weeks passed and no biometry appt, but got that cleared up calling many times and sending in requests for clarification too. Appt today went very well with 130 and 485 both approved.