All the money is shipped offshore as soon as it is deposited. Every client is Western and every contractor is ISIS. Many contractors had names like Tom, $#*! and Harry but they communicate in broken English.
The hiring system makes it impossible for anyone imported from oDesk or Elance to get hired. I went from a level 11 with 4.8 stars on Elance to an unexplained 63% completion rate on Upwork.
I contested this arbitrary 63% completion rate since out of nearly 100 contracts I only returned/refused 2. They got back to me over 6 MONTHS later saying they would look into it.
The site is a fraud. You are better off surfing Craigslist.