I had my last 2 babies there, and I had an amazing experience both times. Andrea was there for the birth of my 3rd son (she had twins a while after that, and I don't believe she's there anymore.) Heike was there for my last baby, born in October. I LOVED Heike. I've always loved getting her at my prenatal visits, and I was so excited that got to attend our last birth. She really is the most supportive, calm lady.
I also saw Tonya and Nicole throughout my last pregnancy, and they were great as well. I kind of preferred Nicole, but that's just because I felt like I overwhelmed Tonya a bit...lol! She seemed quieter to me, and I usually came in there with my 3 rowdy little boys.