I got the Harbor Freight one, too, last summer. The blades seemed to need to be tightened an unreasonable amount or they would vibrate themselves loose. Aside from that it worked perfectly. It seems like the kind of tool that even a Harbor Freight one could last a long time---it's not tortured during normal use the way an angle grinder usually is. You could buy a Fein, of course, and have the pleasure of knowing you owned the very best. But couldn't you buy about twenty of the H/F ones for what a Fein cost? One thing about a cheap but adequate tool is that it doesn't make your blood run cold when you drop it on concrete---it's only a nuisance.