Midwives vs OB

Hi ladies. I'm newly prego at 4 weeks and trying to decide who to make appt with. I live in San Francisco and have 2 options available at my hospital. I can do the typical hospital birth with an OB and her partners that follows me throughout the pregnancy. Or I can go to the midwife birthing center where they have tubs and try all techniques for pain control but the epidural is available if I need it. An OB is also there. The only negative is that the birthing center doesn't have a nicu but transfers to the hospital if needed. Anyone used midwives? Any and all opinions welcome :)