There are some people in the tea world who don’t like Teavana and for a few reasons. I have my own issues with them (mostly the way they waft the dry tea aroma to everyone, all day). But, sometimes you just want to like something and have to give it a try.
I was in the DFW airport and decided to grab a Youthberry at Teavana, while waiting for my flight. It wasn’t horrible, I actually liked it. It was a little sweeter than I would have liked, but the flavors were there. One thing I’ve read is that when the staff steeps the tea for you, they use 2 or 2.5 times the recommended servings. Something to consider if you would rather make it at home on your own.
If you have a sugar sensitivity, I would recommend asking them to make it a little less sweet than they normally would. It’s always easier to add sugar than take it out!