I'm a serious, practical user of UAV's- mainly to take aerial still pictures of project elements in my consulting engineering practice. I currently have a DJI Phantom with a GoPro Hero 3 Black camera, but want to purchase a new UAV and am considering the following: 1. the new DJI Phantom Vision- if the camera takes similar quality shots compared to my GoPro Hero 3 Black camera. 2. the Turbo Ace X830-D (http://www.turboace.com/turbo-ace-x830- ... opter.aspx) 3. the 3D Robotics 3DR RTF Y6 or the 3DR Iris (https://store.3drobotics.com/t/ready-to-fly/arducopter) Features I consider important in a UAV purchase: 1. ease of use- so I can concentrate on positioning the UAV and camera, and not on flying the drone. The Phantom has been really good in this regard. 2. ability to take good quality still pictures, similar to the GoPro Hero3 Black or better. 3. reliability- a really good Failsafe and Return to Home system. I often fly my UAV in rugged, mountainous and wooded terrain and need to increase the odds of getting it back if it wanders away. 4. a tracking system that allows me to find the UAV if it gets lost- this must be something that works without cell coverage. Ideally, something that monitors the position of the UAV in real time and displays and records the location on the controller would be great. I have also ordered the Tile (http://www.thetileapp.com), which is a small chip that allows you to home in on your device from up to 50 m away using Bluetooth- but that won't be out until late 2013 or early 2014. 5. a FPV system that allows me to see what I am shooting with the camera (I usually shoot a picture every 10 seconds using the GoPro's intervalometer). 6. redundancy- a system that keeps flying, even if one motor fails. 7. good customer relations and collaboration. I am keen to share my flying experiences with other members of the community so that we can all learn. DJI and their dealers have not exactly been very good at answering questions and responding to concerns (like flyaway's). I am leaning towards buying the 3D Robotics 3DR RTF Y6, but any suggestions would be most welcome (either posted or via a PM).