This is an enjoyable game. I bought it with the intent of using it for resolving submarine battles in role-playing a submarine commander. The game is perfect for this. But this game is also great for just pulling off the shelf and running through a mission. Set up time is only a few minutes (shuffle the deck and lay out the two play sheets).
My first mission did not go so well. I encountered 8 ships and choose to engage 5 of them. I only managed to sink one ship of only 7,000 tons. My submarine was sunk during the 8th encounter. Still it was fun. I actually was glad to see that it was not going to be too easy to score high.