Your project uses external peripherals and needs them connected securely ? Don't look twice, and take that shield. You can add components on it as it has a 0.1" spaced through hole for standard dip components as well as stackable headers and screw headers.
Plug the RaspiRobot Board into the GPIO port on the Raspberry Pi and it provides dual bi-directional motor controllers, two open collector outputs, two switch inputs, a pair of status LEDs and even a voltage regulator capable of powering the Pi using a battery source from 7-12VDC.
If you are an expert but just step into raspberry pi, this item will create a good bridge for your learning purpose. All the Raspberry pi pins are “redefined” into arduino style pins, so you can focus on python programming and higher level controlling by using RPI.