Went to the restaurant after reading reviews on this web site for my wife's 40th.
Can't really fault anything about the whole restaurant.
You arrive at the hotel along the narrow alley and make your way up the lift and steps to the restaurant, then you walk into the restaurant and get an amazing view of Prague.
The service was excellent and the food was equally good. We treated ourselves to some nice Champagne & Chablis, and at the end of the meal the waiter gave my wife a box of chocolates for her birthday.
It's not cheap but in terms of value, location, service and food it was worth every penny and I would highly recommend a visit.
This review is the subjective opinion of a TripAdvisor member and not of TripAdvisor LLC