In reply to Heike:
Its reasoably well bolted, and you should have a love for wide cracks and chimneys. At the top, make sure take the exit right. Good topo here https://www.bergsteigen.com/touren/klettern/maixkante/.
The descent is reasonably easy and has a few abseils down on Hallstätter Gletscher. On reaching this, aim for the larg track connecting with the cable car. No real glacier equipment and heavy shoes needed. Make sure to reach the last gondola, otherwise its another 1000m easy ferrata and scree down. Time 2 hours from the cable car station to the (new) start of the route, 22 pitches and 1,5 hours to the cable car top station.
Have fun, its a big outing.