Been there a couple of times with gf mtb’ing the most recent being last summer.
Some good trails – fave is probably
http://www.worldbikeparks.com/park/trails/saalbach-hinterglemm/hacklberg-trail
Many of the trails are quite technical when compared with uk trail centre but still doable on a 120mm. Gf manages many of the trails fine on a 120mm full suspension.
Generally pretty quiet and no queues for the uplift when we’ve been.
The usual very good austrian hospitality applies.