I'm searching for grad schools to apply to, and I have some on my radar, but I want to learn more about the environment of the math department before I apply. I.e, friendly professors, grad student union etc. Are there any sites where grad students talk about their experience at their department?
If not, how do I ask people in the department about their department without sounding obnoxious, or creepy for looking them up
Or are these better suited questions for when(*fingers crossed*) I get in to their school as an admitted student?