I started using Classof1's solution library last month after a bunch of assignment were dumped on my class by the Statistics prof. I wanted to try out the solution library, since it was pretty cheap at $3 per solution.
And it cam out way better than I thought. There were many solutions similar to those given by my prof, and all I had to do was a little bit of search and $3 to solve my assignments.
And I was so impressed I've now actually subscribed to the solution library for the year. I'd recommend it to anyone who would like to get help which is very inexpensive.