Agree... EC is a marvelous program.. takes a LOT of stubborn dedication , motivation, and willpower.. but it is superb.
NOT an online program. Self study and computerized testing except for the grand finale at the end, the much dreaded CPNE.
Depending on your motivation and study habits, it will take you anywhere from a month to 6 weeks per course.. some who just "scan" the material might do it faster. I like to KNOW my stuff inside and out.. need to digest every word before I can retain it, so I was one who took about 6 weeks per course.. A&P even longer.
Good Luck and enjoy.. what EVER you decide !