Eco Friendly Yoga Exercise Mat (2 Colors)

My husband and I are just starting yoga. Right now we’re only in our living room with DVD’s and Wii. We have no yoga mats. We lay down towels, but yoga mats would be great. Are these good? Anybody use them before? What are the pros and cons or this particular brand? I know nothing*. Please educate me.
*About yoga mats, people, yoga mats.