The location was certainly excellent. However there were a few aspects of the apartment that fell short of expectations.
The apartment is indeed on the top floor of the building, however it has no special affordances that one might associate with a penthouse, such as a balcony, deck (other than a very small communal deck on the roof) etc. So "top floor" would have been a fairer label than "penthouse".
The bed mattresses were hard and uncomfortable, and the pillows thin and also rather hard.
My colleague and I both lost a lot of sleep at night due to a strange sound emanating from the ceiling above the middle bedroom. I don't know if it was a shuddering pipe or something metal being blown by the wind on the roof, but it was extremely annoying.
Otherwise, everything was as I would have expected. Very clean, organized, everything we needed was provided.