Pros
Free profile set-up, easy bookings, over 600 agencies posting contract work on a daily basis during high season, ability for workers to rate their work days and anonymously review the agencies, ability for agencies to anonymously review the field workers their hire on contracts, plentiful opportunities to get hired on long term contracts, extended contracts, or have agency clients hire you.
Cons
Some agencies require separate registration on their websites and just use Trusted Herd to build their worker database (Trusted Herd is trying to limit these practices). Some contract gigs are W2's, other are 1099, each agency has their own payout method and schedule (some pay next day via Venmo, some every Friday, others bimonthly, and older and lower ranking agencies pay once a month or more). The talent need to be well versed on Project Management and Accounting to time manage and track payments for 1099 tax reportings.