I figured that if this thing survived the job I purchased it for, it would be doing good.  It has that and quite a few more that were just rough.  So far (knock on wood) I haven't experienced the switch problem or dust attachment problem that other reviewers have had.  We almost always use it attached to a vacuum.  And that's one of the reasons why it probably gets more use than some of our other sanders.  The vacuum attachment works better with it than on our other sanders.  So far, despite a lightweight appearance that would make you suspicious of its durability, it's still sanding through some rough territory for us.