For a colonoscopy, it was a "pleasant" experience - bet you never heard that before!?!  The preparation was not a problem; the staff, starting at the entrance, were efficient, pleasant, knowledgeable, answered questions, had a sense of humor, worked well as a team - some little annoyance with a team member, medical staff explained everything clearly, and was told at the end that I do not have to have anymore of these procedures!  Yea - glad it was a good one!
ASLMC GIPIE