Ondrej's place was perfectly located for exploring Prague. Place is accurate from the pictures so no surprises when we got there. Very conveniently located near a number of great cocktail bars and all the main sites are a short walk away. Check in was very easy and despite arriving early, we were able to leave our luggage in the Hostel in the same building. Would gladly recommend the place, and would stay again. Ondrej was really friendly and had some great recommendations for things to do. Yes it is on the 4th floor and there is only stairs, this wasn't that much of an issue to us.