Technically, if you don't need anything, then it's just wasting money...
I should check my email. I could use a cheapo toolkit for my new car. [The old car is still in the family, so it kept its toolkit.] Not sure though if I'll spring for one of theirs, their tools are ok but kits tend to have cheap ratchets etc.
I used to have one of their torque calibrators. Measures applied torque (duh I know). I put it onto a 1/2" drive breaker bar and used it for torquing lugnuts. Angle it so I could read the display, I could zip in 30-60-90 ft-lb settings without ever adjusting anything. Unlike my cheapo HF clicker, where I have to adjust each time I change torque settings (it's a hard life, I know).