I was part of the group that looked at Edpuzzle and I really liked it. I loved how you could add questions for students to answer throughout the video. I also liked how there was a wide range of videos to choose from including Youtube, Crash Course and Ted Talks.
I chose a video from Crash Course about the Moon. This video is designed for older students as the video is technical. I thought it was very interesting and informative, despite not knowing much about space initially. The video could be used as an introduction or as an ending to a lesson or series of lessons.
Overall, I think this is a great tech tool to use in the classroom. I would use it to make my own video with questions and then get students to watch and answer them as they go.