Many people new to editing have used Wondershare. They have a trial version and the learning curve isn't bad. There are tutorials on using it.
The hardest part of editing is throwing out most of your footage. The end product is best if it's only 1 to 3 minutes. Nobody watches a video longer than that.
Not aimed at you, Steve. I just quoted you for background.
The trial version of Wondershare has a heavy watermark in it's rendered footage so the free version of Wondershare is only good for evaluation...you won't get anything usable out of it unless you pay for it. However, I have it and I thought it was so good that I paid for it. It was one of the easier editors to learn but still isn't a slouch in producing a good video.
yes, there are better editors out there. I've tried some of them. Some are difficult to learn, some are resource hungry so won't run properly on older computers or computers that don't have 'guts'. Wondershare offers a good compromise: You pay for it. It's not so resource hungry as some out there, not too difficult to learn, and produces pretty good results.
All that said. If you have a good 'gutsy' computer with plenty of horsepower (at least 16 Gb memory and a i7 processor and good graphics card with good memory on it), the I recommend Davinci Resolve. More difficult to learn than Wondershare but has all the things in it that you are ever likely to use.
I agree about the editing. You have to be ruthless in throwing away stuff. Anything much above 3 minutes is in danger of being repetitive. Only produce anything much longer if you feel you can hold your audience's attention...remember that what interests you may be bloody boring to someone else. As PatR says, go for shorter segments. Often, producing a good edited video is hard if you haven't got good source footage to work with. So, if you intend to edit your footage, then keep in mind what you are looking to produce from the flight: A bit of planning can go a long way to help you in the editing stage.
The longest video I've produced was 10 minutes long. Typically my videos are between 1 minutes and 4 minutes long, peaking at just over 2 minutes.