What should I know about apartment hunting that one isn't usually aware of?

I’m looking into getting my first apartment and I don’t really know what I’m doing. I have an appointment to fill out an application and view one in a couple days and I was wondering if there’s anything I should know before going in on the place.

Some of the amenities are:

A/C Window
Balcony/Patio
Electric Stove
Garbage Disposal
Linen Closet
Pantry
Refrigerator
Self-cleaning Oven
Stove
Vanity
Walk-In Closet

I believe these to be pretty standard. Is there anything obvious missing?

I am in a little over my head and help would be awesome.