Before getting my Snap On Techangles (1/4", 3/8", 1/2"), I researched and tried quite a few digital torque wrenches, such as Matco, Gearwrench, Lowes Kobalt, Craftsman.
Most digital torque wrenches (except Snap On) are from Taiwan or China. The electronic control are similar to each other. The Corwell in your picture looks similar to Carlyle and Kobalt.
IMO, Snap On's control is the best: the beep volume, vibration feel, color light indication, also the dual 80 flex heads are very useful.
I'd skip the Cornwell, because a used Snap On is close to 50% retail too, and newer is always better (like all electronics) . The new Gearwrench 120XP torque wrenches are nicer, but not quite as nice as Snap On. The cheapest one with angle seems Kobalt, a 3/8" could be had for less than $100.