First, the good: great location, clean, perfect for a solo traveler or a couple looking for a short getaway, and Bianca is very responsive.
However, there are some issues here. Stair access is not an accurate enough description for the unit - they are narrow and EXTREMELY small stairs with multiple tight turns AND doors in the way. As an adult man, bringing one suitcase up the stairs was difficult. A family or an older person would find it basically impossible. The stairs are dangerous even without luggage, as far as I'm concerned. There is also no real climate control in the unit. Finally, the location is great for nightlife and dining, but is not kid-friendly at all, so keep that in mind when booking.