Don´t trust their reviews
We hired a freelancer of Fiver for a pitch deck design. Originally the delivery time was agreed being 3-4 days but the freelancer asked for extension again and again. After he was not able to deliver what we agreed in the contract I told him we will give him a bad review for his service. 
As a result he asked to cancel the order - after he wasted already 10 days of our time for a time critical task. I denied and told him he need to deliver the agreed product. He involved Fiver support and ask them for cancelation. A few emails later and after explaining ou point of view (freelancer don´t want to face a negative feedback so he decided to run away from the job) and asking them to deliver a fair solution they canceled the order and our account at the same time.
Means there is no support for the people who finance their platform and no approach to find a solution that is fair for all parties.
Moreover they support the idea of unfair and unrealistic reviews as a client is never able to post a realistic experience if freelancers can always cancel if they do not like something. 
There are much better platforms out there which deliver a proper and honest customer feedback 
I highly suggest not to use somebody who is acting like that