If you create a lot of web graphics, the way the export persona works is incredibly cumbersome. You can to create the right kind of slice and then can't convert it. If you create a slice from a layer it only exports that layer, not objects within that design (for example where a layer is a box of an infographic). You can't interact with slices and content at the same time. Snapping doesn't work when creating a slice so it's hard to get it spot on. I find I have to go to the measurement of the key object in the designer persona, go to the export persona, create a slice that is nearly there, adjust the figures by hand. It drives me mad and I have to do this a lot. I (say) Sketch, it's one right-click, create slice and you are done. It's so cumbersome I end up going back to Sketch, it just has a better workflow for this.