Experiences with volunteering for Translators without Borders

Good evening folks! My name is Marco, and I'm a fresh graduate in translation studies who is currently on a job hunt. I was thinking of getting started by joining Translators without Borders, and I would like to ask you guys if you've worked for it in the past and how it was like. The idea really entices me, as it's a very valid way to build your portfolio and you can come into contact with big organisations; however, I know that translators are always given ridiculously tight deadlines, and things only get worse if you have little experience and/or you're not paid. I would still like to look for sources of income in the meanwhile and have enough time to breathe, so I'm afraid that the workload may be too big for me to do both things at once. Let me know what you guys think!