The team isn't actually from the United States but from India. They post their received projects on freelancing sites which is sad so if you have problems with the quality of the solution you received (which is mostly the case) then it's a big problem. They don't do the project themselves, it's a shady middleman business. If you're looking for credibility, this isn't the service you're looking.
Freelancer.com is hiring people to fill up positive reviews of complaint sites so that the first pages of reviews on review websites will show only 5 stars. So this is how they "up" their game to cover up their negative unresolved issues.
What they do before is they act and talk to every person who post negative review telling them to contact them through their email to get the issue resolved. In fact, I did that but eventually you always end up with unresolved disputes. Eventually people re-posted their experiences online. Their "terms and conditions" is the natural downfall of the company. They think it is fair, but it seems like users don't see it fair thus this is the natural result of their doings.