Im gonna say nope, and... nope again.
I just finished (without actually finishing) to my liking. The only road problems I ran into was 4x4 roads, and early on the AI did not want to take the roads. For some reason they thought going along side the hills was a quicker route.
A hint. Dont link your city to any other AI capital until you know exactly where the the road is going to be. The road leads directly to your capital. Not a good idea if your not on the best of terms with the guys who live next door to your best friend in the world. Your friend gets slaughtered and... well... thats a road right to your front door.
I went the whole game on hard with 5 AI. Only ever went to war with 2 of them. Tarth was in the lead and the only one I had not seen but still at war with.
No reason to complain about that 3 day game. It was one of the best starts I've had in a long time, but heck.
It is possible to win. Im currently steam rolling with a dragon on one side and my dear leader on the other. I just wish something would pop up right now that made me care about the last 5 towns I just burnt to the ground.
math for testing
after turn 150 and over you conquer 3-4 towns in under 20 turns you have a 1 in 3 chance of turning everything around in the world. A plague, The Creator appears, or something to keep you paying attention. Its an impossible request I know.
Anyway I had a great time. You cant win every game.