The Gerber First Essentials is a very popular bottle that bottoms out on cost, but in this case, we feel you get what you pay for. This is a tiny bottle with an even tinier nipple, and to top it off, that nipple is made of latex, one of our least favorite baby-friendly materials. If you're just looking for a very basic bottle, we'd suggest something like the Tommee Tippee or Medela BPA-free.
Gerber has modified their design to now include a silicone nipple on the First Essentials bottle. This is a welcome improvement to older versions of the bottle that used a latex nipple.