Yes, we did use the gift certificate for the Yonana's and we both decided it is much over-hyped in our humble opinion and returned it. We also own a Vita-Mix and can get the same results using the Vita-Mix blender and in fact AGAIN in OUR opinion get better results. I haven't checked Amazon's reviews on this since it's been over a year since we bought then returned it...but I usually trust the reviews there.