I really like how it connects me to some of my favorite companies, such as Apple.
Some are limited in their job search tools so you can't find certain jobs or only see one option when looking for a new position. You have to be very specific about what skills/competencies they would need from you if you apply through them. It's a great way to network with different companies and get your resume out there! Honestly, not much at this point but I think having more options will help once they grow into something bigger.