As a new parent, one of the first things that ran through my mind was what kind of bottle I was going to use. I went to the local baby store and found there were tons of options. So many that I was going crazy looking at all of them. I decided to ask around and found that 3 were very popular. Playtex drop-ins, Born Free and Dr. Brown. Once my son was born I bought different ones and tried them out. My favorite by far were the Playtex Drop-ins. My son loves these bottles and they are so easy to clean. I bought tons of the different sized nipples and washed those in my Madela bags and then all I had to do was wash the outside and drop in the plastic drop-in when needed. I actually would put powdered formula in the bags and have them ready for the next day. Born Free were nice bottles but there are too many parts to undo when cleaning them and if you do not have the parts put together correctly the formula does not flow through the nipple right. Dr. Browns are highly recommended but I didn’t like that you have to wash out the straw part. Playtex Drop-ins it is and will always be! Love them.