In my experience the CHF 11S is actually less expensive than the 202. However, I've been using Febi-Bilstein 06161 instead in my Saab 9-5, which is the same as CHF 11S but costs less than either of the Pentosin products.
Whitewolf is right that 11S was a bit better at extreme cold temps compared to the new 202. The 202 isn't a "better" fluid, just the most recent version.
I've converted my A6 from 11S to Amsoil PSF and have had no problems. Even last winter when we had weeks of sub-zero temps, the power steering pump never said a word. Plus the Amsoil stuff was much cheaper.