We are sorry to hear that.
I am personally still sticking with Classic Elements on my own layouts.
I see the huge potential of the new elements and I do use them from time to time.
The new elements still didn't fulfill their potential, and our developers are working on the last steps to release Themeco Template Manger, which will be a new tool which will open doors to new possibilities and make the flow of the new elements even faster than the classic elements, please stay tuned and bare with us during this transition moment and I can guarantee you, you won´t regret, We have great times ahead on the horizon
Regarding the "Poor Design" as we noticed some users were also upset as you sound and as we listen to you in order to create a product that fits your needs our developers have made adjustments to the builder, and if you really don't need the V2 Elements, you don´t need even to see them.
Visit Settings page of Wp Admin > X > Cornerstone and select the elements you want to be displayed.