I have the 150, 3mm orbit ROS Festool, and while it does not perform the amount of functions as the Rotex, it does although perform very well as a finishing/polishing tool, and also occassionally can be used for more aggressive work, if fitted with a 50 grit pad.

So if you are concerned about the price of the rotex and require a finishing sander 90% of the time then the 150mm 3mm orbit tool may fill the gap.

regards

Tony