Here is what they said about the collection. There is a great collection of tracks all sorted and ready to use. There are hundreds of tracks and searchable by genre. They released a massive collection of mixdowns from there students so the public could use them to practice. The following list is a collection of sites where you can download other peoples mixdowns and tracks to experiment with. That is why over the last few years I keep coming back to a few sites to download mixes to experiment with.
One of the ways to get over that is to mix other peoples music.
Are you struggling with your mixdowns? I have definitely run into that in the past and have found the biggest thing to break you out of it is to change your perspective.