This one is more difficult to communicate. Ask current and former lab members.
Our work is often difficult and challenging, but our aim is to contribute to scientific progress. Enabling an environment that is conducive to creative progress is absolutely paramount. We try our best to do this. Good ideas and the associated progress often come from points of view and perspectives that we had not considered before. I am still not sure how to best go about this and we try to improve continuously.
As to how it is to work in the lab in reality, you will get the most accurate picture by speaking to current and former lab members. This is an important decision for you - gather as much information as you can. Everybody who has gone through this process knows this and will be happy to provide you with feedback.