Funny story: At the beginning of every semester back in college where I was a music major, there was a practice room sign-up day where the students could request to reserve certain practice rooms at certain times for the duration of the term. The competition was so fierce that a couple of my classmates actually hid and stayed overnight in the music building to be first in line at one point. Everyone was looking for something different, yet equally important — perhaps one person liked the piano with a consistent touch, perhaps another loved the acoustics of a particular room, while yet another loved the rich tone of That One in room 1306.
This is all to say that no two pianos are exactly the same, and no two clients are exactly the same as far as what they want and need out of their pianos. But rather than any of my clients having to camp out overnight and wait in line for a certain piano a la Black Friday, we take care of any and all of the adjustments our clients need in the comfort of their own homes, on their own instruments.