Very tasty
I am usually reluctant to try products with Stevia, but with all the positive reviews and since it's so far down the ingredient list, I thought I'd give it a shot; I've been pleasantly surprised.  Thankfully, it isn't cloyingly sweet as so many other items that list Stevia as one of the first/main ingredients tend to be.  I do taste and smell the celery flavor, but it's not too overpowering (I'm not a fan of celery juice.).  I mix this with some chia seeds for a little extra oomph (I don't drink coffee; yes, I'm weird).  I have noticed that I do have more sustained energy.  I'm making my way through all the flavors of this product line, but I would not hesitate to order more of this flavor.
Rating: 5 stars