Yes, I ve been there twice. I myself do not recommend the audio tour. I just don t think it s worth it. Just get the general admission and have fun. You ll probably be too busy looking at the penises and vagina s on the skeletons to hear the audio. LOL. If your really interested in hearing about the different organs and bones inside the body than maybe the audio is for you.
I did not get the audio tour and I did not feel like I missed anything, there are plenty of signs to read about what you are seeing. And without the tour you can skip areas that are too crowded and/or boring. You should also check goldstar.com I think they have discount tickets available.Bodies is a lot of fun though, really neat stuff.
Was just there on Saturday. I paid the $6 for the audio and never used it. The tour is self-explanatary. They have plaques at each exhibit clearly explaining what you are looking at. Don t spend the extra money.