Standard Variable

I am in the process of joining Bulb but I have noticed that I am on a the Vari-Fair tariff which is a Standard variable product. We are all being warned by various financial experts and the media that Standard Variable products are the worst/most expensive tariff’s. Does their advice apply to this tariff i.e. should I be worried, should I be seeking to change my tariff?

Bulb only do one tariff.

Thanks leonard