I wrote a semi-detailed review from my first try today:
https://news.ycombinator.com/item?id=9924721
Overall it's not perfect but I like it and it got the job done. I'm also pretty confident that with time, they'll be able to make this a pretty solid product. I bought it.
tl;dr is that I got this very meh video with no effort:
https://s3.amazonaws.com/gnarhub/hank/whatcom+falls+-+bad.mp...
And this pretty solid edit with some tweaking: