Birthing Center?

I'm 5 weeks with my 2nd child. I'm considering going to a birth center instead of the same hospital I went to with my 1st. No bad experience, I actually loved my nurses and my midwife. I didn't get any kind of pain medicine, I used the tub they had in the room. I'm considering a birthing center, more natural way...not to the extreme of a home birth (although I have thought about it) but maybe a step down from the hospital. Any thoughts or opinions or experiences?