My overall experience with the drone business has been very positive. I'd say the biggest hurdle is getting people to understand what drone footage can show, and how it could help them (or their business), and getting them to understand the cost involved. Our biggest client is Bradley University, and we have shot footage for their cross country, cheer & soccer teams as well as providing clips of the Peoria area for their basketball team's intro video.
My biggest learning experience was to really listen to my intuition when flying. My worst crash happened about a year in--so I was feeling comfortable with the technology, yet had a lot to learn (I still do! Every job is a learning experience!) and wanted to capture some major flooding in the Illinois River Valley. It was a stormy day, but I thought I could still get a little bit of footage when there was a tiny break in the weather. I did get my footage, but it nearly cost me my copter!! The wind picked up as I was landing, flipped it over and my heart absolutely sunk, because I thought I killed it. No damage to any motors, but I did crack the case & broke 2 propellers. I still use this drone today, but she looks like a warrior. (Note: I had qualms about flying that day, and if I had listened to my gut, my drone would still look like new. Trust your instincts!!!)
And, here is a photo of one of the STEM Camps I taught last year. We had 6 Tellos going all at once! It was absolute chaos, but they learned a lot, built their confidence and had fun, so the day was a complete success. I came back a couple months later to teach them how to edit their videos in Adobe Premiere.