Eh, I would say more than a couple hours. I'm still pinning the back to the batting so its going to be a little while before the quilt is done. Geez, I couldn't tell you how many pins I've used so far. I ran out of the nice quilting pins so I had to use the cheap pins which come in a box of 1000 (or something ridiculous like that) for 88 cents.
I'm trying to pace myself so I can get it done by next week, but I don't want to rush it and then end up making many, many mistakes (that would be bad). My goal is to, at least, start pinning the top to the batting/back layer by the end of this week and then spend next week sewing it all together (I figure the binding part shouldn't take too long).