I have a Rotex Ro150 FEQ and an ETS 125 EQ. I bought the Rotex first. It really can remove material in rotex mode, but it can be a bear to control. Certainly a two hand machine, and not really very good inside cabinets. It's also heavy and fatiguing when doing finish sanding, especially on vertical services or inside cabinets.
I then bought the 125 EQ to compliment the rotex. The down side is that I need two sizes of paper but that's not really that big of an issue. Maybe in retrospect the 150/3 would have been a better choice, but I'm not sure. I really do like the 125 for finish sanding. It's light, and very easy to control as a palm sander.
Sanders and routers are like potato chips . . .