We (nomadbits.com) have been using it and everything has been great so far.
We help companies with APIs improve their developer onboarding process, which means we invoice both monthly services (like creating and maintaining high quality API libraries), as well as one-off consulting (like updating documentation and creating "Getting Started" guides), and Paid has been great for both use cases.
Do you have any specific questions?
Full Disclosure - Paid is a customer of ours as well, so we may be slightly biased :D
We help companies with APIs improve their developer onboarding process, which means we invoice both monthly services (like creating and maintaining high quality API libraries), as well as one-off consulting (like updating documentation and creating "Getting Started" guides), and Paid has been great for both use cases.
Do you have any specific questions?
Full Disclosure - Paid is a customer of ours as well, so we may be slightly biased :D