Location is excellent, it's very near to Vaclavske namesti, one of city main squares. We didn't use our car at all, everything was at walking distance. We had secured parking for our van in buildings lobby. Apartment is brand new, really clean and designed very well. Fridge full of food was waiting for us, which was the most unexpected and kind way to welcome tired guests.
I can't recommend this apartment enough. Our host was there whenever we needed anything, available on mobile phone, quick with responses while texting.
Definitely my first pick next time when I come to Prague.