Has anyone here used a service like prMac and found it worthwhile? I'm about to launch my first Mac app and I'm struggling to apply myself to the marketing asp

Has anyone here used a service like prMac and found it worthwhile? I'm about to launch my first Mac app and I'm struggling to apply myself to the marketing aspects and would love to just get on with coding my next idea; so I was thinking of using prMac but now it doesn't seem like such a great idea...