Experience and Sample Pics of 28mm Summilux?

Hi, been considering the 28mm summilux and found one used for a decent price. But the more i search and read about this lens, the more I realise there really isnt much written about it, or very sparce sample images (The Flickr group has limited samples from different users).

Wondering if I could get everyone's thoughts and opinions on it, especially sample pics and user experience thoughts. Particularly compared to the 28mm summicron. Im thinking of pairing this with a Contax 45mm f2 M Mount and the two will be my main travel kit.

Going to pop by a leica store to try it out one of these days as well before pulling the trigger, esp for a purchase so expensive!