 Nelepp was and still is known for the beautiful quality of his voice and for his memorable characterizations.He is likewise remembered for his sense of humor, perfectionism, and work ethic.Interviewed for a Russian documentary about Nelepp, opera director Boris Alexandrovich Pokrovsky recalled how the tenor continually asked for even the slightest suggestions to improve his facial expressions, hand gestures, posture and any other conveyance of his character.