I think MANY people perceive it as being tacky and trashy. It's the -lene ending. I have the same problem with
Charlene which I really like. I think
Roseanne and The Simpsons have helped made -ene names trashy (Brandine, Lurlene) but they were probably always a bit tacky and country-ish.
I don't really like it much.
Darla is better but I don't like that much either. I think
Charlene has more substance because at least it isn't just derived from an affectionate nickname.