Lukasz, picked us up in the train station when we arrived, and took us to his place. The apartment is spacious and comfortable. We were only two so we didn't use the upper floor. There is a supermarket very close to do groceries which is very convenient. Lukasz provided us with bread, ham, cheese, milk and cereals so we could make our own breakfast. Getting to the city center is easy using the bus and takes approximately 15 minutes, but buses are not frequent and outside of peak hours they pass only once per hour, so if you miss one you'll have to wait a lot or walk to the main avenue to try to catch another bus. Unfortunately just before leaving we had agreed with Lukasz that he would come to pick up the keys at 10am so we could catch the bus, but he never came to pick up the keys and when we called him he told us to leave the keys in the mailbox, which he could have told us the night before and avoided this. In general we would prefer to stay closer to downtown or to the old jewish neighborhood next time we visit Krakow.