We were late for check in but Vladimir's uncle patiently waited for us and shared very useful tips about restaurants, cafés and a market nearby, as well as public transportation to the Prague Castle. He showed us a private parking lot just 300 m from the apartment which was inexpensive and very safe.
Location of the apartment was perfect to reach the Prague Castle and all attractions north of the river.
It was large enough for 3 of adults comfortably.