Back in the day Charactersheets were either a scrap of paper or a third-hand xerox from your DM. The internet came along and soon character sheets were everywhere and they were free for the downloading and printing.
So we now have these character folios. IF you have a character you play constantly then these are just a formated way of what we had done for years; making a sheet and then stapling extra sheest to it.
Character Folios like these are great for the PDF market. Buy it once, print it of dozens of times. You use for the buck here is fantastic.
This one is one of the best really. With some minor tweaks it would be perfect for any d20 game.