Is Yoga a good form of exercise?

Hello I'm a long time user of the site, first time active in the forum.
I'm currently doing my final project at Uni on branding Yoga, and I was just wondering if some of you could take a couple of minutes to fill in a short 10 question survey.

Any help would be really appreciated :)

https://www.surveymonkey.com/s/7HYJ8LV