I am really glad I saw Susan H's review (below). It was written over 2 years ago and is no longer valid, as the ENTIRE office staff has been replaced with cheerful, knowledgeable, caring and extremely professional people.
Dr Farber himself is a true Good Guy. He is dedicated, talented, and exceptionally well educated in pulmonary disease. He is very intense, and does not tolerate incompetence in his support staff. If you have been suffering with respiratory distress and have been unable to find a doctor who is willing to do what is necessary to identify the root cause of your illness (and there are many reasons for asthma, bronchitis etc) if you want the best possible chance to get your life back, give Dr. Farber a try.