I often go months without using it..
Preferring the 35lux FLE for speed & modern looks
or the Tri-Elmar 28/35/50 for flexibility and slightly more modern look
However the uniform corner to corner look, and how nice it is stopped down always delights me
Back to back beach days with it and the 35lux FLE
Came away with this MXR04740
by Steve, on Flickr
35lux FLE is probably not the right tool when you want to shoot some landscapes
The above was heavily processed to try to crop out the corner using 16:9 aspect ratio, vignette correction and other tweaks.. yet the sky