I don't have speakeasy myself, but I have heard nothing but good things from the people i know who do use it.
As for whether it's available: they may not be able to offer it where you live. Speakeasy is an ISP -- they do not own the DSL equipment. Speakeasy uses Covad DSL, so whether you can or cannot get DSL depends on whether your CO has Covad equipment installed.
tooki