I bought the strings, searching for some deviations of the standard Phosphor Bronze strings. So, comparing to your default D'Addarios or Martins these strings produce a bit more dry, crunchy yet bright and well-balanced sound. Probably, to the aforementioned general sonic qualities the strings tend to "scream" rather than compress when played really hard.
Overall, I like Ernie Ball quality and I am using the other 80/20 set for my all-mahogany guitar. What comes to these particular Aluminium Bronze set, I will rather use one when I'll need to add a vintage touch to a modern acoustic.