As said before, it can offer free music and even games giveaways in exchange for a review. It has helped me personally by being able to get my channel out there in the freedom community, and, as there's tonnes of other YouTubers your size, there's more than enough willing people to give your content a chance. (plus I think these forums are awesome fun and I wouldn't have found them without freedom), it gives you a sense of community, as the feeling of being lost is very common with YouTubers of a small size.
I hope this gave a bit of insight and personal experience to you.