I used the OHSU practice for my first birth. Didn't waterbirth, but didn't necessarily want to. I loved the care I received from my midwife team. They dealt with some funky, but turned out normal, stuff during the pregnancy in a wonderful manner. I had a 30+ hour labor and they were nothing but supportive. If you want a hospital birth, I'd highly recommend the practice.
That said, I'll be home birthing next time if at all possible. Even though I asked for (and got) a good, natural nurse at OHSU, my labor was so long, one of the last ones was pretty annoying. I was pushing during shift change and those who had been with me weren't going anywhere. But, the new nurse was supper pushy, particularly about monitoring. I declined additional monitoring, she forced it. Argument in the delivery room began WHILE I WAS PUSHING. It was annoying. The midwife later apologized for not getting rid of the annoying nurse more quickly and for briefly using the strapped on monitoring while preparing for the birth (once he was comming, it was fast) which made the nurse station in the hall aware of slight decels, giving them the "right" to insist, etc. Still, wouldn't have happened at home.
As far as cost, I'm not sure. I had part of my 2nd trimester care out of state, so the billing got screwy. Add to that that they bill separately for the physician/mw, the hospital for mom, and the hospital for babe and I don't know if we will ever figure it out. Babe is nearing 16 months old and I still get random bills! If I had to guess, initial billing was somewhere around 11K. Delivery was about $2500 for the midwife (maybe an additional $500-$1000 for office appts - that is where the messiness is coming in I think?), $1400 for the babe's hospital stay, and $6000 for my hospital stay. Of course, that was then haggled down by the insurance company. Keep in mind on the hospital stay that while I did have a 30+ hour labor, I didn't check in until about 12 hours before I delivered and I checked out less than 30 hours after delivery. No complications, no drugs, baby was super healthy and never left my side, etc.