I know two elders, one current and one former, who cared for the people of God for a number of years. Concerning the former elder, I can confirm he was perpetually pleasant and present, often greeting at the door with a warm smile on his face. I was not around when he was asked to serve as an overseer and I cannot comment on his qualifications, but I never heard that he disgraced himself in any way, and he was certainly well liked by many. I was only an occasional visitor in those days, but he never forgot my name.
After a few years, he resigned his responsibilities and his family later left the church under circumstances that were less than fully transparent, but I do not hold that against him either. Sometimes discretion is preferable to full disclosure, especially when it involves the confidences of others.
The other elder is still serving, and he has his share of detractors.