Went with a group a couple of years ago, it was awesome.
Great venue and hospitality, reasonable prices for lift passes, food and drink, would love to go back some day.
Of the DH trails the blue line was about ok for my skill level on a 160 mm travel bike and attainable speeds and was about the only mid level run, all the other DH stuff was doable but quite harsh with some very technical do or die type features oh there is a lot of high woodwork.
There are some great lift assisted trails and I would recommend doing the 5 gondola tour to get a feel for the area where a you will awesome views and scenery and find a great bit of single track on the opposite side of the valley to the blue line and some interesting runs down to Leogang.
From memory a lot of the non DH trails are on fire roads, and although we didn’t use the facility I would maybe recommend using a guide.
My only critic would be trying to track down the single track stuff (probably our fault for not using a guide) and less technical DH runs to warm up on, as per Chatel :)
Take spares, run the biggest discs you can, left thumb joint came up like a balloon and took out 5 spokes riding a rock garden because I couldn’t brake any more, cue death grip pinball run :)
Oh and one of our group took a Halfords HT, lasted 2.5 runs down the blue line, hiring a FS rig didn’t help either resulting in a full on body surfing dirt moment.
Have fun.
Photos