The apartment and location is just great. Despite arriving at the discussed time, noone was there to let us is or give us the key. we had to wait almost an hour until the guard came. Once she arrived and gave us the key everything was fine though the waiting was a bit unnerving as this was our first AirBnB trip.
The apartment has a rustic style which works great with the neighborhood. The wireless internet was fast and worked immediately, as did the TV. The nespresso was also quite nice as I'm one of those caffeine addicts that needs a coffee before I can wake up. As a 6'1" person I'm used to european showers being a bit short for me, this didn't even come close though!, even my 5'6" girlfriend couldn't fit so be prepared to bathe.
The streets were a bit loud outside at night but that's to be expected given the nightlife nature of prague and the extremely central location. Even still it could be worse as the window faces a side street and not one of the main ones.
All in all, for a couple this is a fantastic apartment to see Prague with, notwithstanding the trouble at arrival and low shower, it's a nice apartment.