Using DDO is great when you want to add general dirt or small scratches to your models texture, it also creates spec maps, AO maps and a few useful others with just using the Normal map that you have baked out.
To create my Albedo map, I made a colour map for DDO to recognise, using this as reference.
The main texture I was trying to reach was a pale wood sort of colour, along with some sort of rough skin for the blade. I simply colour picked from this pallete and coloured the AO with the appropriate colours.
After DDO had created my texture maps I was able to edit them, adding dirt and dust to areas, also lowering spec values and roughness values.
It was great for editing maps with just the use of a slider.