We used their services to launch our product and we're very satisfied with the results. They saved us tons of time and helped bring lots of traffic and signups.
We have used this service for 3 months now and the only "PR" opportunities they brought to us were paid advertising. They never delivered the comprehensive report they promise at the end of each month, instead all I got was silence. While on the website, there is no way where I can log in and modify or even check the status of my campaigns. Totally un-transparent.
The main problem with this product is that you never get a list of journalists they are contacting, so I have no idea of the quality of the list. We didn't get any results on our campaign, but maybe it'll work for other people. It's a good idea, and a nice team, but the lack of transparency makes it a non-starter for me.