Shameless plug: I run a new company, CodeGophers, that competes with Upwork. We get a lot of unhappy Upwork customers.
Unlike Upwork our service has a quality guarantee, so clients aren't forced to manage freelancers, and deal with low quality work. It's kind of like a product manager and freelancer combo, and overall it's much easier for the client.
If you're unhappy with Upwork, please give us a shot. You can see our site at https://codegophers.com, or start a task by writing in at:
start@codegophers.com
We're able to handle most small tasks in a matter of a few days.