The video quality out of the dji app is astonishingly poor, so pixilated and jumpy. If they put a little time and effort into the app and give more options/functions it would be an amazing tool but as it is I wouldn't use it much.
One thing I would like to point out to fellow pilots. This bridge is an active railway line, I can only assume because of all the live wires I had a hell of a job trying to keep the drone even on one spot. It's drifted and buffeted all over the place making flying through the arches nearly impossible. It's only because I used to fly helicopters that I managed to keep it semi straight.
It's a beautiful location and I missed the setting sun by about 10 mins, it looked amazing when I was setting up but by the time I took off the arches were no longer lit up as I had wished.