Great content, OK integration.
The video content is top notch. The google apps integration is the only reason that I've indicated a lengthy setup time. If you don't want the quiz reports in your teacher's google-drive then I don't think it requires as much effort.
How I Use It
We primarily use this as an introductory tool and for self-paced practice. It works great for science concepts. The assessments are really more of a formative check-in, so it is a fun and engaging way for the students to be introduced to a concept.