i had a membership at a 24/7 place for about 2 years. working the 4 to midnite shift, it was awesome working out right after work. i didn't have to hold back to make sure i would make it thru the rest of the day, nobody was there at 1 am! no waiting for equipment or the taning booth, no "chatters and posers" slowing me down, the olympic sized pool was always empty at that time....doing laps is MUCH more fun skinny dipping! my "centerboard" did slow down my lap times somewhat........