NodeJS using redis - installing with hiredis vs without?

I am integrating redis into my NodeJS server application and I am trying to figure out whether to install node_redis with the hiredis command. I suppose that the possibility of installing it would not be available if it were not somehow useful. At the same time, the github page for node_redis (https://github.com/mranney/node_redis) makes it clear that upgrading to newer versions of nodeJS can cause problems with the added hiredis option.

Can anyone state the unwritten pros and cons of adding hiredis versus no? How much does it cost to increase performance when working with the C library?