The software is somewhat clunky. It requires 2 clicks to begin each lesson. There are instances where the time allotted to take the lesson is longer than the spoken lesson (e.g., the "Flares" lesson finished with 1:40 minutes remaining where nothing was said...this is annoying. There are other instances of this happening: "check oil level" time was too long; "Leaving the dock"....time allotted is also too long. "Fueling a boat"....the on screen text is different than the spoken text. In the section on "Carbon monoxide", the Figure shows the incorrect CO2 instead of CO. Lastly, I have a coupon from the BOATsmart study guide (Online Discount CODE BS616) but I did not see where i could enter this information. I would appreciate if you could refund me this amount. Otherwise, the course is well done.