The company gives a free version for its software through that you can try few of its features and also give $7 trials for its ultimate versions. You can test the software and the go for longer terms. There is no money back policy as the company use and buy, which I think is fair in the case where they give trail for just $7. For support I will say is a good company they update and help us to get the solutions. The company has tutorials and videos which also help us to get best out of software.
I've ranked websites in the past with spun content, and now they are still on #1 position of google. First year (2014) google found me because my spun was really bad, many paragraphs were just copied and my position drop from #2 to around #20 after a panda update. Later I cleaned all my text with better spun (I didn't buy any article!), my ranking went up again, and with more backlinks I reached #1 and it is still there