I just sold my 35 L today, and no, I will not replace it with a siggy, I have something else in mind.
Pray tell. Zeiss 35 f/1.4 Distagon perhaps?
Nope, it was the 200 f2.0 L
and besides the fact the AF was pretty hopeless and it suddenly was full of sand and dust and the focusing ring made a grinding sound and it's now off on repair, it's the best lens by very far, I have ever used.