Internet-route planers are not specific enough for Gmunden, so use my detailed description:
> leave the A1 (Salzburg-Wien) at Regau - go left on B145 in the direction of Gmunden,
> after 8km exit at Gmunden -Zentrum - go left to city center (Bahnhofstraße),
> at the post office (on left) go right into Anton von Satoristraße,
> after 100m turn left into the courtyard (downhill),
> park in front of the white building on the right side
> you have arrived at the apartment and can begin your holiday!
From Gmunden station by taxi (1,6km, 5 minutes).
You can also go by the shortest tramline of the world (up to Frank-Josefs-Platz, then go left "Am Graben", then left in the Anton von Satori Straße gehen - apr. 300m)
Or you go by Bus 505 to Anton von Satori Straße (Postoffice)