At T-24 or afterward you can log in and print your boarding pass. Or you can just print them at the airport when you check your bags. EBCI will take care of the check-in so you don't have to worry about timing.
I do like to print mine at home so I can see what boarding position I got. We've done EBCI twice so far and got A16/17 & A24/25. We also bought EBCI for our flights in February...just like the convenience.