G'day, the Airvan is a really easy A/C to fly and its great because they are reasonably new so at least everything works, There are only 2 major problems that I found flying them:
1. There is no rudder trim which means that your right leg gets pretty tired in the climb.They really do require a lot of rudder input from T/O to top of climb.
2. The seats are probably the most uncomfortable for extended ops that I have ever encountered, anything more than 2 hrs and you will feel like you were the main attraction at the Mardi Gras!! Not a good feeling.
The A/C have a door open add on that deflects the airflow which makes them good for photos out of the cabin sliding door,so for photos this is really good.All in all they are a good A/C in my recent experience and its great to see that its Aussie built.
All the best and good luck.
