I used Born Free, and while I liked them, there were a lot of parts to clean. However, I had to use soy formula with my daughter and it's a lot thicker than breastmilk and regular formula and it would get stuck in the nipples and the other pieces so I would have to hand wash them. As a result, I switched to the Playtex Drop Ins. My daughter did just fine and there were less pieces to wash. I have heard from others though, that the Born Free do well in the dishwasher. I did have some leaking problems with some of the valves. Every bottle I've seen says to replace the nipples and the valves every 6 weeks, I think it's just a marketing ploy to get you to buy more stuff, but with the valves, I would of had to replace them after 12 weeks if I didn't switch bottles all together.