I'm doing an REU this summer in a topic that was incredibly interesting to me based on my previous research experience. I love working in that lab, and everyone is nice and well-rounded. The PI is easy to talk to, even though he's busy. This summer though, I'm working at a very highly ranked lab, and the atmosphere is much different. It's uncommon for people to NOT stay 12+ hours a day, and it seems like they have no time for a life outside of the lab. I haven't even seen the PI, and I've been here two weeks. I still want to go to graduate school, but I want to avoid being part of an emotionless lab. Can you get a sense of this from tours, or how can you prevent it? Also, any tips for making the most of this summer would be great. I'm at a great place with a great project, but I'm not having any fun while in the lab.