The answer is NO! After uploading 5 documents, you will not get access to the free Course hero document on the spot. The document you will upload must get 5 unlocks or 5 thumbs rating. Once you get this rating or unlocks, then you can get one course hero unlock. Otherwise, you may not get access.
Accessing the documents or books from Coursehero is easy. At start you find everything exactly which you wanted, but when you proceed it gets blurred. You will want to access the full document as it is providing you with the proper material which you wanted. How can you get access to unblurred Course hero document? It costs much.