I renewed mine last Dec in Arapahoe county.
I printed out the form and questions from their website and filled them out.
I walked in --no wait. They took me to the CCW permit room and went over my paperwork. A lady took my permit and they took a new photo of me. A few minutes later the lady walked back in and handed me my new permit and said "congratulations--see you in 5 years". I was in and out of there in less than a half hour with my new permit in hand. It only took that long because they had changed a few questions around and I had to redo part of one questionaire.
It was as they say it is--quick and painless