I just went the Education path in an Epic, Continents Emperor game and it didn't go so well. Before I go on, I will readily admit I wasn't giving much thought to the game and played poorly. I had peaceful neighbors, so I just hunkered down with 6 cities, laid down a bunch of cottages, spread my religion, and went for the quickest reasearching I could. Hey, I was watching the news and eating dinner, so sue me.
I did an Oracle->Theology to speed up the process, and also sidelined up to build the Great Library, but pretty much went straight for Gunpowder. I was able to use Theology to trade for stuff like Currency and Calendar, but nobody would give up Metal Casing, so I had to nab that myself. I was easily the first to get Paper, but I didn't trade it, so other than Theology I never really had any good techs to trade.
It was going smoothly enough until I hit Education, which at that point was like hitting a wall as far as research time. I was still missing civil service, code of laws, construction and really just a whole bunch of techs that would have made things run more smoothly, but Education was a monster to research first. I used a great scientist to help it along (courtesy of great library), and once I had it I didn't trade this either, and pretty much every civ on both continents was demanding it by then. All the AI's caught up at this point, with the worldwide trading kicking in, and even though I had education first, someone discovered Liberalism before I finished gunpowder.
At any rate. I finally got my muskets (without catapults), collected around 15 and went to war. I had to whip them out, or at this point they would have taken just about as long to produce them as it would have taken just to backfill the techs for and also to research chemistry (where I would normally set 0% research and upgrade my existing raider III axe/sword/maces).
I was only able to take 3 cities before everyone else had gunpowder, and at that point I was falling quickly behind in techs and everyone hated me, due to religion (was using the theocracy exp bonus) and refusing demands for paper/education, so I just quit.
I'm gonna try another one and put some effort into it, and stay up all night!