Sibelius works better with a reference guide
The authors of Sibelius have made it as easy as possible to create great sheet music at the computer. Even so, with all of the features that the program has, you have to study in detail to get the most out of it. For me it is essential to have a printed Reference Guide. When Sib 7 first came out, Avid soon ran out of reference guides and I bought one on ebay. Recently when the music school where I work acquired Sibelius, I went back to ebay and found that Sweetwater is a good place to shop for the Sibelius Reference Guide.