My amenity choices are pretty low maintenance (zero fat greek yogurt, S. Pelegrino sparkling water and fresh fruit) and I've found about 80% of my Kimpton stays get them right. I always get two, sometimes three of those choices. I may be asking for things with a fairly low cash value, but I really appreciate the benefit of having the things I like when I'm on the road in my room.

Eventi NYC
May and June 2014
Hit both times

Monaco Alexandria
May 2014
Miss (no amenity, just raid the mini bar)

Morrison House Alexandria
May 2014
Hit

Monaco Chicago
February 2014
Hit+ Hand written card about cross country ski options in Chicago when we arrived right after a snow storm (I have cross country skiing in my profile).