After being a happy user of my Oculus Rift for nearly a year it was time for an upgrade.
Even that many VR makers are promising new headsets I decided to go for a used HTC Vive Pro. It's not cheap but well know for a good quality and easy setup. Another key issue was support of FlyInside plugin.
Bought it on Ebay UK went smooth expect for delivery handlede by Ebay took 2 weeks !!!
Very easy to setup trough Steam VR and just install the lasted Flyinside plugin...