Coal liquefaction into solid fuel results in significantly more MJ per coal used than crushing and processing coal, and Coal liquefaction into Rocket Fuel produces more MJ per coal with a better acceleration / top speed as well.
Coal Liquefaction can also use Productivity modules at every stage in the process, while this cant use them at all.
I absolutely love the graphics and the concept but once I have liquefaction i just dont see myself using these recipes.