Well, Makita halt ...

-) Of Makita sander is much less vibration, he is very calm in the hand
-) Of Makita is to much quieter
-) Its own suction in the dust bag is much stronger in the Makita, it is suctioned clean
-) The sandpaper-fixing at the Makita is built much more stable, ie the paper is absolutely determined because the fixation is made entirely of metal

The rotation speed can be continuously adjusted by adjusting wheel on this model.
That is why you give a few bucks more and buy from you if, then the Makita BO3711 BO3710 instead of, as the latter has no variable speed.
With an external extraction even dust-free (waagrechtes) grinding is possible, so you can thus also in an apartment super grind it.
I can absolutely recommend the grinder!