To answer a couple questions - yes, it's standard size - 4.25 x 5.5.
In terms of time... it takes several steps with drying inbetween, so it's good to make a bunch at once. I made a batch of 8 - I stamped the city on all the vellum, then went back and did the verse. I let them sit a while before doing the embossing so none of the EP would stick to the bravo ink. When the embossing had cooled, I turned them over and did the highlighting. Then I let them sit again before doing the brads - the gel pen takes a while to dry and I wanted the vellum to smooth back out (the embossing made it curly). Short answer - it's time consuming!!
I used stamp-a-majig on every stamping step - too much work to stamp something crooked!!