I have tried 2 different types of PFDs
First I bought a Billabong PFD
The problem was that the hook from the harness was pushing the PFD up to my face and it was very uncomfortable
Then I bough a Neil Pryde vest and it have a spot for the harness hook in it and it is so comfortable
I had so many hard impacts on the water that without the PFD each one of them could have break my ribs.
Use them and you will not regret it