Bottles- Dr Brown's

We tried all sorts of bottles with the girls. And these seem to work the best to me. There is alot of parts to them though so if you don't have a dishwasher then I do not recommend. We have two little baskets and we put the small parts in them and the nipples go on top. We heat them up in the Avent bottle warmer, I got it because it was the cheapest one at Babies R Us and it works just fine.We used the 4 oz with level 1 nipples until probably 4 months then went to the 8 oz with Level 2 nipples. Don't buy too many 4 oz ones and level 1 nipples because you will need to move up before you know it. They are 7 months and we are still using Level 2 nipples because the Level 3 is just too fast. Every baby is different. But I knew absolutely nothing about all of this and was so lost on the bottle aisle.