If I were you I'd take a ride past there by car and have a look at the setup before you bring the boat.
We went a couple of times last year by boat. Food was good, but the entrance to the boat basin is very shallow, and most of the available slips are best suited for smaller boats that can go bow in.
I backed in to one of the slips more on the east end of their dock, and when I left in low tide I was kicking up a little bit of muck until I got a few feet away from the bulkhead.
Not a whole lot of maneuvering room for a larger boat in the basin. The boats docked opposite the restaurant are kind of close.
That being said: I have a friend with a 42' Sundancer that goes more frequently. He says he coasts in through the entrance to the basin in neutral just to be safe. He also handles his boat really well, better than most handle a boat of that size, so he has no issues with the tight quarters.
I can honestly say that I think handling a 42' boat in there would be a bit nerve wracking for me at my skill level. Not impossible, but a little tighter than I'd prefer.
