It is worth getting a controller. Have only flown with controller out to 50ft outside. And everything worked great. With phone indoors I have not flown more than 6 feet in any direction and not had a problem. Have not had chance to play with fpv Google's yet
Did you calibrate the compass? Do you have latest firmware? They just came out with an update a few days ago. Long over due! I calibrate compass before every flight. I have the FPV game controller and it works great but I like using the phone still. Good luck!
Being GPS it should know its height at elevated take offs. Great question! Maybe try on some gentle hills first before making the 'plunge' of a cliff. That would make my backside pucker too!
Hardly any lag until in follow me mode which sucks. Have a Zerotech Dobby, its tracking works great with no lag. I notice you can not find a follow me tutorial on YouTube. I think Yuneec has some firmware upgrades to come up with
Sorry to hear about cras
My Breeze will show IPS orange on my carpet and then turns blue when it takes off. If you walked under Breeze while flying indoors it will sense you and climb, if not, who knows what happened