The discussion centers around the importance of undergraduate research experience in the context of applying to graduate programs in mechanical engineering. The original poster expresses concern that their research experience was not acknowledged during interviews with faculty, leading to doubts about the program's interest in them. Various participants share insights, noting that while undergraduate research can demonstrate a student's capability and interest in graduate studies, it is often not as critical as GPA and GRE scores. Some emphasize that different professors prioritize different aspects of an application, and that research experience is more valuable if it involves significant independent work or is supervised by a faculty member. The conversation also touches on the role of letters of recommendation, which can help applicants get noticed but may not heavily influence final decisions. Overall, the consensus suggests that while research experience is beneficial, strong academic performance remains the primary focus for graduate admissions.