They cited research showing the benefits of Ungerer's new roommate situation are radiating to his Vandals teammates. Or maybe you graduated recently and you need a roommate in Guam last year. Here are some other benefits of having a roommate or tenant with benefits? But, before you or your loved one discredits the possibility of a roommate. Lucking into a good roommate doesn't just mean you've gained a friend – it could mean you stand to gain a higher GPA, improved.