I use it in my D'Kora and love its 180' firing arc. Brings a little extra when you broadside.
Not sure if it will be of use on a torpedo build. Unless you fancy manually firing it every 2 seconds, which I imagine would get annoying after 4 seconds, you need to set it on auto fire. When you activate a torpedo boff ability (spread or high yield) there's a chance the missiles will use it. This would be a serious waste as 3 or 4 torpedoes are always going to do more damage than 3 or 4 missiles.