Just went from a 11-32 9sp to a 11-36 9sp on my Quick 3 and for all the same reasons as stated above. 70 year old knees just don't want to here it on some rides so the lower end really helps take the strain off. My crank is a 50-34 so that is the next step if needed. I also have a Quick 7 that is a triple crank, 48-38-28, with an 11-32 8sp cog set so that is easy on the hills but the bike is heavy with a cromoly fork that is not kind to my arthritis riddle hands. It is used mostly as a back-up or a companion rider.
I am very happy I swapped out the cogs as it has made the rides here a lot more fun. Still working out a proper seat.
Frank.