Although we weren't able to Meet Sarah and Markus, their communication was very fast and very helpful. Their apartment location was great (close to rail, bus, and other transportation, as well as supermarkets and other necessary resources), as well as clean and fully stocked with everything we needed. Sarah and Markus have a well thought out check in/out system, with detailed documentation on how to let yourself into the apartment, how the keys/elevator works, and other useful information. We had a nice stay. Thanks, Sarah and Markus!