What are the technical advantages and disavantages of using Chrome in Kiosk mode

I am interested in knowing if there are any technical advantages/disadvantages to running a web app/site in kiosk mode.

I have heard from someone that running your site in kiosk mode gives additional permissions to your site to access files, write files,print etc. which could be useful for my site but I can't find anything online about technical differences between the two. I only managed to find info regarding session management and ways to "hack" kiosk mode.

Does anyone know of a list of the technical differences between normal- and kiosk mode for Chrome other than the fact that it show a page full screen and lock a user out of the device to a certain extent?