In the center of the town, next to the cathedral and only a 10 minutes walk far from the station.
Zürich-Airport, green sign direction super highway. St. Gallen. Leaving the super highway in St. Gallen when you see the sign "St. Gallen-Kreuzbleiche" (in the tunnel on the left). After you will pass 4 traffic light. After the 4th you drive on the left roadside and turn into Davidstrasse. Drive stright on up to the next croissment. You cross it on your right handside you will see the Raiffeisenbank.
Drive into Gartenstrasse, along Raiffeisenbank until "Oberer Graben", than you turn right, drive up to the next croissment. Stright on you will see Hotel Einstein, you have to turn left into Gallusstrasse,there we are the third building on the left.