Martina was very helpful and accommodating. We arrived at 6:30am at the bus station which was a close walk to her place and she was up and let us in to her personal apartment to keep our bags there until our room was open and clean for us. She gave us a map with helpful information as well. She even booked us a cab when we were in a hurry to get to the airport. Only downside was that we didn't understand how far this place was from the old town center and charles bridge where we were most of the time so we spent a LOT of time walking back and forth (~30 mins).