It beats Phyllis, Adelaide, Bertha and company (m)
I find those examples excessively doddery and crypt-keeperish (although it's a general dislike of some of the sounds too)
I have a fascination with Beulah but I'm not altogether fond of the sound either. It isn't a name I would ever entertain. The name is unheard of here so there are no strong or even mild associations.