The best part about pingturks services are its customer support team which makes it easy for solving problems without any hassle of paying them more money or time! It takes longer than expected to complete tasks even after you pay upfront but I guess that's because they have so much work with their other clients.
They can be expensive compared to others like oDesk etc., however if your looking just for some simple jobs then this might not bother you as well since there will always be new people who need help in such platforms. We use Pinturk service mainly for writing articles and data entry works.