I'm not myself a fan of pretty much all rap. I enjoy Watsky, Fort Minor and Macklemore but that's about it. Flobots and "Fight With Tools" in particular are brilliant and innovative, kind of like the Arcade Fire of the rap world.
Probably the most popular song from the album is "Handlebars", which got lots of radio play due to its catchy melody. But to those who listened carefully, it was more than just another earworm-causing song - it has an impressive use of mixed instruments and its lyrics are deep. It definitely guarantees more than one listen.
Although "Handlebars" is definitely bittersweet at best, its depressing tone is not the only one of the album. It goes through several different emotional states, ending on the inspiring and hopeful "Rise", which simply celebrates the potential of united human beings working together.
Definitely give the album at least a listen. Even if you're not into rap or not into rock, this is so uniquely stylistic that you can't dismiss it without trying it first.