What Would Change If Politicians Wrote Laws Based on Internet Polls?

A new political party, designed by software devs and engineers, is joining the race in California. If elected, PlaceAVote's Congressional candidates vow to decide on every bill based on the majority vote of their constituents--as measured via online polling. Could that sort of direct, digital democracy improve how Congress works? Would it make government more dysfunctional? (Is the latter even possible?)