Dr Butler is very thorough and is willing to spend the time needed to correctly diagnose your issues. This can lead to a pretty long wait for the rest of the patients and a typical appointment takes about two to three hours(thus my one star deduction). Lab tests are done on site so getting the tests she needs is never an issue. Parking in the Mt Sinai tower is just $ 2 for patients with validation available as you exit the elevator on the third floor.