Air conditioning is a key part of any commercial building, but it can be particularly important in office spaces. If the air conditioning doesn't work right or fails completely, the people working in that office are going to start suffering, and their productivity will also start to fall. Even things like the sound levels created by an air conditioning system can have an impact.
That's why it makes sense to compare different types of air conditioning systems, and you're likely to find that Variable Refrigerant Flow (VRF) systems are best for offices.