The best thing about Lehigh is that everyone is part of such a community. I recognize enough faces walking to class that I feel at home, but not so many that I feel like I know everyone.
One thing I would change is the administration's attitude towards Greek life. I am not Greek, but sometimes they can be a bit harsh. The fact that fraternities are routinely kicked off the Hill is absurd, excepting when that motion is merited, which, as far as I can tell, it is not always.
When I tell people I go to Lehigh, most people ask if I'm an engineering major. I am, but that's not really fair to ask. Lehigh's business school is also amazing, and although most everyone calls the arts and sciences college the "College of Arts and Crafts," it is also amazing.
When on campus, I spend most of my time in Hawk's Nest (a late-night eatery on campus) or in the library. I spend a lot of time in my dorm room too, but the hallways are always bubbling with something going on, so it's not like I feel locked up.
Lehigh's administration is good, for the most part. Sometimes it is a bit harsh in dealing with Greek life, but it is usually good. Most administrative department are really friendly and willing to help you out, even if that means bending the rules a bit. Things are pretty relaxed.
The biggest recent controversy was the thievery of the waffle iron from Rathbone. I'm told it was part of a pledge event for one of the fraternities. The staff at Rathbone had a minor panic and tightened up security for a few days, but that was it. I think they're buying a new waffle iron sometime soon.
Lehigh has TONS of school pride. People are constantly wearing their brown and white and people love talking to tour groups about how awesome Lehigh is. The rivalry with Lafayette is also pretty intense and most athletic events are well attended.
Lehigh is very unusual because it is built on a mountain. Many aspects of life here are somewhat different because of this. For instance, kegs are banned on campus because some fraternities used to roll them down the hill and make pledges jump over them. You also try not to go back to your dorm more than once during the day because most of them are uphill. You also get used to the fact that almost every building here is built into a mountain. So, you generally enter a building in the front on the first floor and exit out the back on the third floor. There's also a bus that takes people up the hill. The hill is a good thing though. Everyone here is in pretty good shape from hiking to and from class every day.