Instruct: Classify a given Amazon review as either positive or negative.
Query: Too brief to be very useful

This video has some useful information, but it's so short for the amount of material attempted to be covered that the amount of useful information is very limited. It's approximately like trying to give a day-long boating safety class in one hour. Most of information needs to be left out and only a few highlights can be presented. The highlights may almost be enough to get by, but they're definitely very far from a complete education.I find the Coast Guard Auxillary'sBoating Skills and Seamanship, 13th Editionbook to be vastly superior, and at a significantly lower cost.On the other hand, simple advice which is mentioned in the video such as not anchoring at the transom could have saved the lives of those football players in Florida, so even the basic information in this video could be useful if widely disseminated and heeded.