I ate there and it was excellent. I was a little shocked at how good it was to be honest. I went to one in a non-descript building in the parking lot of a strip mall. It didn't look like it was even going to be good, but because it was Dan Marino's I had to eat there and dragged my wife all over creation finding it (we were on vacation at the time). It turned out to be the very best restaurant we found on the entire trip. It was reasonably priced and we had appetizers, entrees and it was so good we even had desert (we usually just have entrees but I wanted to try as much as I could since I was going to be there so seldom). My wife loved it and I was in awe. We went early evening sort of as an early dinner although we had skipped lunch.
I cannot say how pleasantly surprised I was with his place. On the outside it looked very average. Inside it looked nice, but nothing great. But the food was fantastic. It really was far better than expected. And, since we were there at an odd time, the Maitre Dee (I can't spell it, sorry) actually came over and chatted with us a bit. I asked him questions and he seemed to know quite a bit about Marino's career. He was clearly a restaurant guy first, but he knew his stuff. :)
On a side note, Don Shula's steak house is a higher end place but is also very good. I am proud to say that I'd recommend either place, but Marino's is more reasonably priced.