I absolutely LOVE them. I used them all day yesterday and they are SO comfortable. I'm 5' 11", 32" inseam and I have them set on the middle setting. They can move back or forward one inch from there. Here's a pic and video:
Attachment 1904
https://www.youtube.com/watch?v=DbvZ...AmH6hNRwYjeJRQ
They have a slight purple hue to them in the sunlight but it doesn't bother me at all.