They are wonderful. J got incredible shots of fish (I'm jealous!) from our first stop, when I was trying not to drown. I got great shots of him, mostly.
Here's my fish ball - not as good - but you can see the baracuda's tail to the top left of the big rock. It was so much more clear in person.
My pictures of him show how happy he was:
I bought him yellow gear for visibility to boaters - I think it worked!