The Old-Fashioned (or Out of Fashion) Prohibition on the Imperative Mandate

The political agenda of those aiming at abolishing the prohibition on the imperative mandate postulates the beneficial impact of such abolition on five ever-lasting problems affecting representative politics: the alternation to power; the special morality and intellect of deputies; the ambiguity of election as a mixed institution; the power of parliaments to tackle and sort out the questions people care for; the hiatus between the government of the people and the wishes of the electorate.
Populist movements claim the imperative mandate stands out as the ultimate remedy to the abuses and alterations in the crisis of representatation. But has the imperative mandate the actual power to amend the current disfunctions? Is it truly the right call to overcome the issues arisen and mend the broken political connection between constituents and deputies?