Recently, the editors of Fine Woodworking (FWW) posted an online review comparing 6-inch Random Orbit Sanders and selected the Festool ETS 150/3 as the Author's Choice for Best Overall sander.
As with all Festool power tools, ergonomics are a primary design consideration. FWW stated that the ETS 150/3 was the easiest sander to control, with no vibration or wobble. They noted that the ETS 150/3 was actually so stable that it could be controlled using a single finger. In fact, it was the only sander in the test group that was rated as having "excellent" handling on both wide and narrow stock. The ETS 150/3 was rated with the lowest noise level at just 86db. Just more evidence that the ergonomic design features of Festool sanders prevent fatigue and offer the most comfortable operating conditions for the user.
The ETS 150/3 was able to achieve up to 100% dust collection when combined with a Festool CT dust extractor and removed the most material when compared to other similar sanders. Notably, FWW used the Festool CT to test dust collection capabilities of all of the sanders. There's little doubt that Festool has become synonymous with sensational dust extraction.
If you're looking to add a great finishing sander to your arsenal, you should definitely consider the Festool ETS 150/3 or 150/5 random orbit sander.