Starting with the good, this place was in a great location, spacious, and the Urban Butler was very quick to respond. They were very accommodating and helpful.
I realize 'luxury penthouse' is a subjective term, but my wife and I weren't able to find anything luxurious about it. The view was wonderful, and again, the location was great. The space was nice, but in a way any flat would be expected. The bathroom, specifically the shower, was gross. The glass walls and tiles' grout hadn't been properly cleaned and had significant soap scum build up. The soap holder was broken off the fixture and the only place to set your soaps was on the floor of the shower.
After reading the reviews, we were prepared for a bit of noise. It was far more excessive than expected and went through the night. We were there Thurs-Sun so we realized it was probably more of a weekend thing, but it was very loud.
Overall, the location and interaction with the Urban Butler were more positive, than either of the negatives, but we were left wanting something more from the description. I would consider staying again for a weekday business trip, but not again on a weekend get away.