When it comes to Dr Brown infant bottles, there is only one word to describe them...amazing! We began using them with our first child back in September 2008, after being referred by other parents and freinds. My wife and I are both very pleased with the way gas was virtually eliminated. Our baby very rarely ever had gas or spit up using these bottles. I highly recommend these great bottles to any soon to be parent or new parent. The parts are very easy to clean and are very easy to sterilize. They are also BPE free and that means alot to us as we only want the best for our daughter. Knowing she...