I recommend this guesthouse for its location, just round the corner from the main square in Krakow, its price (£20-30 for a single room, £32-46 for a double) and for the very friendly helpful staff.
It provides clean simple en-suite rooms and flats arranged around an attractive courtyard off one of the roads leading to the main square. Breakfast is available in bars in the same road, or at the impressive Metropolitan which adjoins the Hotel Saski and ul slawkowska 3, a few minutes walk away.
Reviews of Globetrotter and other Krakow hotels can be found at www.cracow-life.com/krakow/hotel_directory.php which is where I found details of it. I would certainly stay there again.
Globetrotter can arrange lifts to and from the airport if needed. It can be reached easily by the airport bus which stops only five minutes walk away, but the bus can be very crowded on the way back to the airport.
Send your feedback or queries to firstname.lastname@example.org