The instructors were very professional and well prepared to give demonstration as well as answer any questions the class had. Having the engineer in class was very helpful as he explained why certain system components were engineered as they were. During our hands on portion of the class, the instructors explained many of the faults and troubleshooting procedures they have encountered in their past. All were valuable lessons and will better prepare us for the situations we might face down range. The course was the appropriate length for both the hands on portion as well and the theory of operation.