I have, twice: January 2017 and again 2018 (last week). I shot a roe doe and a red calf (the size of a Scottish hind) last year - the boar were not at home. This year I shot a roe doe and a medium sized sow. My partner-in-crime saw lots of roe, red, and three foxes but no boar. All of the hunting is from towers. Most of them have roofs, some do not. You are driven to your tower and left there. You decide what and whether to shoot. There are 200 towers on the estate, which is vast. You will need seriously warm clothing in the winter. It was -20C last year (the Danube was frozen) but only -5C this year. The accommodation was in the farm house, not the wood lodge you see in the videos. Clean, comfortable, and warm. The food was excellent and plentyful. Plenty of canned beer if you are that way inclined. The package is reasonably priced and we are booked in for next year. No guarantee that you will see boar. I saw plenty this year, none last year. The guides speak fluent German. The guide we had speaks no English though at least one does.
-JMS