I think it's wonderful. It was my #1 name when I first started here at BtN. Really, Amos is my absolute favorite male name. I won't use it, however, because of the "anus" teasing. Every name can be teased, but this is a little too mean for my tastes.
It's funny. For a long time I considered the impact of the Famous Amos brand name and the sad racial stereotypes of Amos and Andy, but the similarity to anus went right over my head. I wish it wasn't immediately obvious to everyone else--every man I know, every kid over the age of 8 or so, even my mother. I was crushed to speak on another site to the aunt of a 10-year-old Amos who has been so harassed over his name that his parents are helping him legally changing his it as a birthday present.
Bottom line, it's strictly mn material for me now, but I'd love to see it on someone else's kid as a fn.