It is very easy for our employees who are not technical savvy at all, they can easily fill out any form needed by their companies from within share point without having access or need of other software such as office suite etc., it also allows them with just one click upload that pdf file into an existing folder where we have many folders already created which helps us organize documents quickly so no more confusion about what document goes under this specific category/folder! Nothing I dislike but everything looks good!! The only thing you might want consider adding would be some sort options like time stamping when uploading files via browser since sometimes those links get deleted due date changes even though its been uploaded before hand.
Maybe add option similar how google drive does?