It made a difference right away, especially as far as getting her to sleep at bedtime without nursing. It's also helped *a lot* in terms of getting her to go back to sleep in bed during the non-nursing wake ups. I'm not sure if I was clear about it before (posting with a sick baby, at the in-laws house!) but if she wakes up less than 3 hours from her last nursing, I don't get out of bed at all; I just tell her that it's not time for milk and it's time for sleeping, we'll have milk later, etc. Since she is a year old (or will be on Sunday!!) she can understand me saying those types of things. It doesn't mean she likes it, but she understands it!
But since I don't nurse her in bed anymore, she will usually settle back down and go to sleep within 5 minutes or so of waking. Now, if she wakes up later than 3 hours since the last nursing, I *do* get out of bed and nurse her in her rocker. She nurses vigorously for a few minutes, then relaxes, then pops her head off and relaxes on my chest and then I put us both back in bed before she falls asleep again so that she has to get back to sleep in bed without the boob. Make sense? So I'm really only getting up maybe 3 times per night, which is the same as having a newborn. And sometimes I do a diaper change around 2:00am or so, which I think also helps her sleep better til morning.
This week has been a mess though; we're not home, she's been really sick, so all bets are off. I'm really curious to see how things will be when we get back home with a healthy baby.
Keep me updated on how y'all do!