Much the same, Im primarily designing on autocad and for simple sketches its much quicker, however get to an assembly spread over 40 drawings all with further sub assemblies and it gets to be an absolute b*****d to keep a track on things. Ive used the built in FEA a fair amount, it is severely limited in what it can do (no assembly or weldment analysis) but it can give a rough idea of the design if you can model the the loads correctly - its basically a demo of the full FEA package. Fortunately we have just had a 3 1/2 axis cnc mill and a cnc lathe installed at work, coupled with solidworks should produce some interesting bike/motorbike based foreigners