I'm quickly approaching year and half on the job from 2613 exam.
I like the job, it is cool. It's what you make of it. Some hated it and quit pretty quickly. It's like any other job.
You won't afford a home in NYC at the beginning pay rate. At top pay its possible, depends if you have a 2 income family. Being single and on this job would make it harder - unless you live in a bad area of the 5 boros where the house might be cheaper (240K).
A lot of guys move upstate or NJ/PA. I'm personally shooting for PA, much more bang for your buck.
you go through line training with a senior operator and learn all the routes when you pass training and pick into your depot. You should get turn sheets as well. I just had a customer who knew the route show me lol