I would be happy to be served this dish in a restaurant. The method is very easy and the lemon butter sauce is simple but powerful and adds a lot fresher flavor by topping the fish at the end than if you had cooked it with lemon.
I used sockeye salmon and had to skip the peppercorns since they aren't available here, although I suspect they would make the dish better. Instead, at service I topped with fresh ground black pepper. I served the salmon with a large green salad.
If your picky eaters like salmon, they will love this dish. Non-picky eaters will be pleased, too.