I installed this on a Joomla 1.5 site. Had some troubles with a few things... mostly from my lack of understanding. It took a while to figure things out and get things set up the way I wanted. There are a lot of options and settings and I had some difficulty understanding how everything works. A step by step instruction and more explanation of what each option means would be helpful. I got quick responses to multiple questions via support forum and private mail.
This component does seem unique - I looked for other ways to do this and didn't find anything else that fit the bill.