Project-based learning (PBL) involves students working in groups on interdisciplinary projects over an extended period of time. PBL improves students' skills, increases completion and retention rates, and is most effective when implemented in the first year. Students respond positively to PBL, enjoying working in groups, receiving feedback, and meeting with mentors. However, early implementations suffered from disorganization which stressed students. Improved preparation, managing expectations, and modeling team behaviors led to better student perceptions in the following year. While more work is needed, PBL appears to provide benefits despite implementation challenges.