Water birth

Hello all!  I am 17w4d and have been increasingly interested in a more natural birth.  Fewer medications, ability to get into different positions, and being able to feel as if I have more of a say in the process.  I found a well respected hospital in my area that does water births and focuses on natural methods of relaxation and pain control.  I am nervous about changing my doctor and hospital at this point but feel it would be worth it.  Has anyone had any personal experiences with this?  I would love feedback about this method. Thanks!