IMHO that pickup is a waste of time and money.
It costs $200, then you most probably have to pay someone to fit it. you would probably need an interface aswell, depending on the connections it offers.
It is designed for live performances with an intent to amplify your violin in large spaces.
im guessing you wish to connect your violin to your MBP to record. So:
you should use a good, quality condenser microphone such as a Rhode NT1-A or a AKG C-414. however you can buy cheaper mics than this, but im using them as an example.
you also need a quality, phantom powered interface in order to accept an XLR connector and to power the circuitry inside the microphone.
you can avoid having to buy an interface by buying a USB microphone. but, if you want quality, an interface will have better pre-amps and should give a nicer sound overall.
to be honest, this will probably set you back 100-150$. This is how I would record it. and it involves no intrusion to your instrument. And quality wise, this method would be more superior.