I think this argument really depends on how much sleep you're getting/missing-- not just for that night but over an extended period of time. As a student, I didn't just use snooze-- I actually set 3 or 4 separate alarms in addition to having snooze enabled on every alarm. The reason for this being that I wouldn't even hear the first alarm and would often unconsciously hit the snooze button without knowing it. At one point I had up to 4 different alarm times with different ringtones, volumes, and snooze durations using both my smartphone and a regular alarm clock! And I remember still not waking up for a few classes during long periods of sleep deprivation.

After graduating this year. I started sleeping on a regular schedule. I consistently slept from 2am - 11am (9 hours) for over two months and now I can get up each morning at 9am using one alarm, and automatically 9:30am-10am without an alarm at all.