Aside from fluky and inconsistent controls, the game is boring. Speed has little to do with docking a boat but it is all important in this mind numbing game. The different levels do not offer more challenge, just a different maze to run.
If the controls were fixed, wind and current came into play AND somebody with a knowledge of boats were to re-write the program, it might be worth your time.
Sorry-
Raleigh Blanchard about Dock The Boat