Save money
By hiring a freelance designer, instead of a design agency, you are hiring the talent directly, and avoid paying the account executive, the CEO, the tea boy and the rest of the overhead.

Better client relations
As opposed to working with a design agency, where a designer has nearly no relationship with the client, you will be able to work directly with the designer to achieve just the results you are looking for.

Consistency
Your designs will be consistent in style and quality, as the same designer will work on all tasks.