Can't disagree more with the other reviewer. This is one of my husband's favorite dish; he requests it all the time. I've made this recipe to the letter since it has been published and have yet to be disappointed. If the dish is lacking flavor it is probably due to the lack of freshness of the shrimp and crab, which should be still sweet and salty and possibly a poor choice of the swiss cheese for the sauce. The ingredients all subtly enhance the seafood in the dish. We always get the full flavors of the shrimp, crab, cheese, a bit of heat from the cayenne, melded flavors of the chives, onions, and tarragon with a hint of sweetness from the sherry added. Easy to make and highly recommended. Just make sure to choose quality ingredients as, again, the dish is designed to bring out the best in seafood and cheese.
Flavorless; and what flavor there was was tarragon. I went as far as to pick the remaining shrimp from the sauce and rinse them in cold water to save them for something else. I would never make this again.