The biggest black market i´ve been to in my life. loud, crouded and you find a lot of crap there. You can get everything you want and if you´re good at bargaining its very, very cheap.
it´s so fun to stroll around, see funny fake brands like SP2 (super polystation 2) have a drink for ten cent from an ambulant vendor and just enjoy the stimulus saturation of people, sounds, smells and everything. one of the best places to know the intense atmosphere of vibraty of Guayaquil.
But: Beware of pickpockets and don´t go there after nightfall...