I've been a freelance writer since 2009, and have completed work for a variety of clients, with excellent reviews from many of them. I have had mixed results with Constant-Content. For the first couple of years, there were quite a few assignments available, but now the work requests have slowed to a trickle. Also, the pay isn't the best, and CC takes 35% of the gross fee, so you won't be fairly compensated for writing a quality article. For several years, however, I periodically completed CC assignments based on my available time and cash flow needs.
However, now I'm done with Constant-Content. In 2017, I accepted an assignment on a topic with which I'm quite familiar. I wrote a high-quality article, and it sat in Editorial Review for awhile before the client finally received and accepted it (yes, I got paid).
Then, I accepted and completed a second article for that client. I received a message that CC had sent the article to the client for review. However, the article apparently fell into a black hole, as I never heard back from the client again. I messaged her twice with no response. Next, I contacted CC for help. Several days went by, and CC finally responded, but said they couldn't reach the client. I tried two more times to reach her, without any response. CC stopped responding as well. Bottom line: The client vanished, CC vanished, and I never got paid for my work. Never again.