The DJI Matrice 300 is a good drone for small mapping projects, inspection, and any cases where hover functionality and a wide-open choice in payload is required. The cost of the system must be considered across the range of parts, and consumables, you must invest in to achieve your goals, as well as additional, billable man hours. For large areas, this system will always be hampered by its design as a quadcopter that carries massive batteries and demands a lot of flights in the field. Additionally, its software is not straightforward for mapping, which can lead to setbacks in the field. This all costs time and can impact results, which will involve many more snapshots over a larger span of time.