Well, thanks to Fields of Valor and the EXP Boost, you CAN colo a lot further than you possibly could before.
It WILL take you longer, but its totally possibly so ride EP-DC mobs on Most jobs for ~70 exp a pop.
It now only takes you about 2-3 hrs to take a job from 1 to 20 (little more or less situation depending)
If you Do play on coming back, now Would be the time to do so. SE seems to be in the mode of trying to get people to stay, so they are making things easler.
Some of the good old things i remember.
My first party was in Saturabaruta, where we then went into the towers there, a whm, Blm and Rdm trioing stuff XD
Meeting all the people i have met, people from all over the world. People i talk to on a daily basis now, people i am inviting to my wedding. I know this is about the things that have changed, but the things i care about the most are my friends. Sure i liked how some things were, Skillchains and magic bursts with 5/6 jobs in a party; Nin, Drk, Blm, Whm, Rdm. But my friends are what keep me playing. To those who left, we miss you.