For me the new formula is a deal-breaker. I've already stopped my subscription, even though I find it extremely annoying having to use a scoop with a different product.
What I dislike the most from the new vanilla is a side taste of lemon or so, and the lack of viscosity. With the old vanilla, I really loved it to become a little thick by either using slightly less water or waiting a little - this was the best. It felt like cookie dough (delicious!), but I knew I would feed my body something good and balanced. The new vanilla always stays with a viscosity like milk , but tastes absolutely horrible when using less water.
I share the same feeling that others have described above: the old vanilla was a pleasure, I was looking forward to it, I was enjoying it, I felt great afterwards and I didn't need anything else. The new one is a battle, and the after-taste is not enjoyable. I gave it 2 fully weeks to get used to it, but it doesn't get better.
I really miss the old vanilla. Is there any chance of it coming back ? Looking at all the replies here, I'm clearly not alone with my preference.
Maybe the new and the old vanilla should both be an option, because clearly there are also some customers who prefer a thin milky shake with less vanilla ...