I am really surprised to read those comments as my experience with Vanet was very good. I actually came to this website to read about my new agent as I had to move out of my property with Vanet due to area relocation.
With Vanet whenever I had a problem it was resolved promptly. When I moved out, there were claims from the damage deposit which took a bit long to resolved as they had to follow instructions from the landlord but we found a middle ground and I got most of my money back.
Overall, I recommend them as agency.