I have been using these gauge 8 strings for the past twenty years, and the packet that Thomann sent me are as good as any.
I recommend the lighter gauge to those that want more tonal control over their bends. Being very light, these strings allow for easy bends that might be less comfortable on thicker strings. I prefer a lighter touch, and these strings allow me to perform microtonal bends with high accuracy.
The thin nature of the bass strings also provide a much tighter low end, making crunchier sounds feel less muddy, and allow the guitar to ring out more, due to the lower tension.