I have the Parkside 240v one and it's brilliant. I'll be getting one of these to keep in the car to use if we need to put on the spare.
Some of the highlights:
3 year warranty
2 operating modes: battery operation or via the 12V cigarette lighter plug
60-minute charge with automatic switch-off
Includes 4 socket wrenches
Max. tightening torque: 100Nm
Max. loosening torque: 300Nm