The best thing about this system is that it's scalable from small offices all way up through commercial buildings like those in my town which are around 100 units each (which amounts out at over 20 acres). It was quite expensive as well so make sure what kind of return potential there will be before purchasing; otherwise I would recommend finding something else if possible since they have been known not deliver when promised by their sales people who promise great things but never come true! My office manager found an error within one building where our accounting department has moved into after having worked together long enough - she sent us pictures showing how much space had actually changed due only being able figure half her room compared against previous years' figures because everything seemed smaller than normal size/width etc.; however upon closer inspection realized some were just different sizes such as chairs / tables vs desks & shelving yet still fit perfectly fine without any problems.