The experience really pushed this rating up to a 4 for me. The food was delicious, but nothing inspired or out of the ordinary. It was delicious, classic and well-prepared.
As others have said, you go for the experience. Eating in complete darkness was a great way to appreciate the everyday life of those without sight, but to also connect with the food itself. Often times, what's presented on the plate shapes a diner's perception before they take the first bite. Eating in darkness really lets the ingredients speak for themselves.
While the food wasn't particularly memorable, that doesn't mean it wasn't good. Definitely worth a visit.