Adamnestle,
you may take nice pictures using the internal strobe, but only under very special cirumstances.
As you have the strobe already, learn how to use it and you will start to understand how to use it better.
The YS-110a should work perfectly set to DS-TTL and the camera set to Auto, Av or Tv mode while
you may have problems wit P or Manual mode.
Useful colour correction is only possible shooting RAW, but to have a quick view of your pictures
you may shoot and record RAW and JPG together. This comes handy when you have a slow computer or
no special software to quickly preview the pictures you have taken.
Later you can start to edit the pictures to improve the quality and eliminate backscatter.
Chris