The Harbor Freight torque wrenches work as good as any other torque wrenches I own, and I have several. The price can not be beat.
As with any torque wrench, be sure to "Unload It" when you put it away, that is adjust the torque values down to the lower settings. I used to say "Zero It", but lots of torque wrenches don't go down to zero, and you could mess one up by trying to go below the scale of the torque wrench.
You can buy the Harbor Freight Torque Wrenches in quarter inch, 3/8", and 1/2" for what you would pay for just one of the big names.