I'm an audio professional, so for reference they are the kinds of jobs I looked for. My experiences:
Liked: Better paying work, more high profile positions and more interesting projects.
Disliked: Super tough competition. Jobs would get like 50+ applications in the first few hours of posting. Lots of people applied have solely freelanced their entire career, or have over 15 years of experience.
Now I am using SEOClerks and it really benefits me. Services starts at $1 and it's a great place for outsourcing