It really depends on which variation you use and the meta you play in. For a short answer, yes it is viable, but you have to meta it with the right cards and right approach.
Click here. There are many many different variations on budget stax decks listed. They are all good but each goes for something different, some go for disruption, some for the fastest kill possible, some for more control. In a powered meta, I would lean towards the more disruptive variations as they're no way you'll be able to outrace them.
