I used the SAP project module for about 6 months in 2012. I found it to be quite cumbersome and not user friendly. That could have been the way my employer set it up or because the training was given in half Spanish and half English. Outside of the delivery method or set up, the interface was simply cumbersome. Compared to MS Project 2013/2013, SAP is not as valuable as a PM tool, in my opinion, as MS Project. There are tools out there that are a bit more robust that MS Project but Project is the most common tool out there. Especially with 2013 being retooled, I am quite happy with it.