My daughter was born three months early and as such had a myriad of health problems.  One of those problems was reflux.  She had to be fed while sitting upright as opposed to most infants who would recline while eating.  Plus, she had to remain upright for at least 30 minutes after finishing her bottle.

As soon as she was able to hold her head up by herself, we started using the Bumbo.  Not only did she love it but it made meal times easier for us.  Even if I still held her occasionally while feeding her, she would easily transition to the Bumbo after her bottle while I was able to rinse...