It was perfect. Infact even though it was little awkward time when we arrived still Alex and Karolin were quiet welcoming since we gave them advance notification. Also the host has helped us by giving all the necessary directions about the arrival.
Also when we were leaving since we had a lot of luggage due to CeBIT exhibition and therefore Alex helped us dropping to the nearby Metro Stop to catch a transport to Munich Airport. This was really a kind help which was proactive.
thanks & regards