I like BountySuite Platform. They are a great team of bounty managers with a very fast service. Whenever I have a question they immediately reply within a few minutes. They also have nice ICO projects bounty campaigns.
I am on that platform as well and adding to that I love their services been render, but am yet to know how true they are in times of distribution tho have been seeing all spreadsheet of ended Bounties but the payment aspects is what am still waiting for.