not sure how to supply any feedback with regards to the features - so I'll add a few here ...
Hover - nothing too fancy seems to work just fine and does what it says on the tin - even managed were well todays strong winds
Follow - works quite good as well - however it seems like there is a significant delay detecting the movement, especially when taking smaller turns - but generally very well
Orbit - works very well again - but seems to have difficulties keeping up when object is in motion to keep the object in focus - especially while walking unpredictable paths it seems to have it difficulties not sure how frequent the update polling of the device/center is - might need quicker polling - seems to work better counterclockwise than clockwise
Zip line - works fine but seems to have slight difficulties with angled climb outs (point a 10m - point b 45m) - seemed a bit to struggle when needing to counteract winds
Mimic - I think this is the most difficult - though it seems to work just fine I believe you need to be able to set an angle offset if you were using the tablet on the remote - otherwise it will receive backward elevator and I would think this isnt too difficult to implement - apart from that worked very well
unfortunately I didnt get a chance to test the intercept mode ...
another improvement to the app that I would prefer is offline cached maps - go to location or even prepare in advance - cache the required maps and when onsite no need for 3/4G to reduce possible interference or lag due to bad cell coverage - same applies to a local option of the flight school or tutorials - in app or via in app .pdf option
with regards to stability though - I had a few app crashes when switching control modes
I used the latest version (25) which I have installed this morning on iPad Mini2/iOS 8.4
Hover - nothing too fancy seems to work just fine and does what it says on the tin - even managed were well todays strong winds
Follow - works quite good as well - however it seems like there is a significant delay detecting the movement, especially when taking smaller turns - but generally very well
Orbit - works very well again - but seems to have difficulties keeping up when object is in motion to keep the object in focus - especially while walking unpredictable paths it seems to have it difficulties not sure how frequent the update polling of the device/center is - might need quicker polling - seems to work better counterclockwise than clockwise
Zip line - works fine but seems to have slight difficulties with angled climb outs (point a 10m - point b 45m) - seemed a bit to struggle when needing to counteract winds
Mimic - I think this is the most difficult - though it seems to work just fine I believe you need to be able to set an angle offset if you were using the tablet on the remote - otherwise it will receive backward elevator and I would think this isnt too difficult to implement - apart from that worked very well
unfortunately I didnt get a chance to test the intercept mode ...
another improvement to the app that I would prefer is offline cached maps - go to location or even prepare in advance - cache the required maps and when onsite no need for 3/4G to reduce possible interference or lag due to bad cell coverage - same applies to a local option of the flight school or tutorials - in app or via in app .pdf option
with regards to stability though - I had a few app crashes when switching control modes
I used the latest version (25) which I have installed this morning on iPad Mini2/iOS 8.4