Well, we've had quite a few rooms in Hawaii over the years including before that was its name, before it was concierge and even before our daughter was born! We've always been on the first floor which we do request for a variety of reasons including simple preference. None of the tooms have raised toilets (which is good for our daughter anyway) but if you need one you can request a commode that fits over the toilet.
Have you seen Tikiman's site or looked a pictures of the Polynesian bathrooms on line anywhere? The toilet is in a little cubbyhole for privacy. There is no room there for a wheelchair or an easy transfer unless your daughter is pretty stable on her feet. Ours isn't but would knee walk in and somehow haul herself up. But after our last stay there with her, she said she didn't think she could do it any longer.....and she is a true toughie. We only chose to stay there with her a few times at her request pricipally because she enjoys the guava juice so much! Our last time there with her (we've been back when she was at college) was when we were told there would be accessible rooms....shortly after she told me she couldn't manage any longer. So we were very sad when we discovered no accessible rooms had been included. We had a 8 night stay booked this past January for Hawaii only to find out no accessible rooms after all.

Sorry for the whine but it was a letdown for us.