Renowned Argentinian leather case maker Vaja has got a track record for creating top-notch leather cases exclusively for the best smartphones and tablets on the market, with only minor tweaks and improvements along the way. The company rarely deviates from its classic offerings and usually adapts its famous case designs to every new device. And although that may seem somewhat boring and repetitive which it may be to repeating customers, Vaja's long-standing series of cases have proven themselves to be compelling luxury offerings we tend to recommend. And so today we're going to be taking a look at Vaja's Agenda case for the Samsung Galaxy S4, a premium handmade leather folio-style flip case. The Agenda case for the Galaxy S4 is one of the poshest leather cases around. It's like taking your Galaxy S4 on an expensive date, and you're paying buddy. What have we got to say about it? Find out after the break!