I am really torn about these bottles.  I really like the idea behind them, my son really has had no problems with the bottles.  They are great!  However, they are a pain to assemble having to correctly put together and wash 5 pieces per bottle is a lot!  

The numbers have also washed off the bottles. We have had to put small pencil marks on the wall to hold the bottle up to and measure.

Playtex Customer service was awesome about my issues, they replaced my bottles and sent me coupons to try other Playtex feeding products.  Now I go between these bottles and the drop in's.  I really...