The Paul Gauguin is a wonderful way to see French Polynesia. We had a wonderful time. Especially wonderful were the two motu days.
If you have specific questions, ask away. I know a couple of us on these boards that have sailed on the PG. However, a caveat, I have heard that 2009 will be the last year that Regent will manage the ship; I don't know who GCT will have operate the ship in 2010.