I'm looking into ECM / DM solutions and ran across AEM. Looking through some of the marketing and documentation I kind of get mixed messages as to what AEM features are. Is AEM suitable for document management? It seems to be more tailored towards Web Sites and Forms but not as a repository for day-to-day documents i.e. MS Office and allow people to collaborate on these documents? It seems like AEM Assets section could work as a repository but all the demonstrations I've seen mainly depict graphics and videos.