Just jumping on to mark my place.
Ebf my DC1 for first 9 months, I turned into the human dummy, she bottle-refused to 9mo. We then had a more pleasant mix of bf and ff to 14mo, when I stopped bf'ing.
With DC2 we set out mix-feeding from about day three, just one bottle a day at bedtime. I found the whole thing much easier, and DH enjoyed being more involved. I eventually stopped bf'ing at 15mo, would have kept going longer but had to stop for medical reasons (mine). He's now 18mo so this was quite recent.
I should add that part of my motivation to mix-feed was because I had nipple problems on one side, causing acute pain in the nipple, mastitis and repeated blocked ducts when feeding DC1. It was so nice this time to just forget about feeding from my "problem" side, safe in the knowledge that I could use the bottle as a backup if the side I did use couldn't keep up with demand.
I know that most of my NCT group mix-fed the second time around and I see no shame in doing so, you get the best of both worlds!
For the poster asking about bottles for bottle-refusers, I really did try 'em all, even the special needs ones (yes, really, I found them recently) and Tommee Tippee Closer to Nature were what worked. Nuk looked like they should work, but DC1 hated them. Medela were a good second, maybe because they were what I used with my expressed milk.