Tree of life birth center?

I’m 17 weeks pregnant with my first child. I am set on having a natural birth. I’ve been very interested in water birth. I have my consultation with Tree of Life this week & would like to know what questions I should be asking if any of you ladies have had water birth. Any advise ? Or just any stories of your natural birth and why you were happy or unhappy w it ? Anything helps ladies ! I don’t have any knowledge of birthing