Some people like the oxygen for post workout recuperation, some like it right before a big test. It can reduce stress, ease headaches and migraines, and helps alleviate hangovers. During the summer we barely use the light rooms, but during the winter it's like a giant sun lamp.
Alright.
It's $3 for 5 minutes, and $15 for a half hour; we reserve in five minute blocks. No more than a half hour per day.