People tend to check in during these times:
This Railway Station is part of the National Rail Network. For train times and ticketing information, please visit http://www.nationalrail.co.uk.
Given the volume this station handles, its quite small. Careful when using during rush hours.
If you are going to Liverpool Street from here, walk its not worth catching the tube.
If your getting trains through or to finsbury park make sure your early, they often change them at the last min! Keep an ear out for the announcements, there are often sneaky platform changes.
If you're going eastbound on the circle or metroploitan line. It's a goof idea to go further up the platform at rush hour. You're more likely to get on.
For those with walking difficulties/disabilities or with heavy luggages, you can follow direction of train to stevenage, which has 2 flights of escalator, saves you struggling through. don't abuse it!