I have tried everything under the sun to get my lo to take a bottle-I even intro'd it at 2 weeks and here we are 3 months later and she still can't take a bottle. I ordered to Haberman and received it 2 days ago. After another horrid day of feeding at the sitters again yesterday, I decided I had to try it, it's the only thing I haven't tried, so I have fed her from it twice today and so far, so good. She's taken 2 feeds from it with no trouble. It took her a few minutes to get accustomed to it at first, and it seems to take her a bit long to take the bottle, but she does take it. I'll try to keep you updated and let you know how it works, but if it works, it's the best $30 I ever spent!!!