My baby would only take a type of MAM bottle because of the nipple shape. I’ve been trying to get rid of most of the plastic in my home, but was afraid that a true glass bottle would break and harm one of my kids. Compared with the MAM bottles size 0 nipple, this bottles nipple has a bit of a slower flow, which is better if you go back and forth with nursing. I don’t notice a lot of spit up with these bottles, and they are very easy to clean. I’ve popped them in the dishwasher and they come out fine. It has a bit of a flare to the body of the bottle, which makes it easy for my 4-month old to hold himself. Being glass coated on the inside, I haven’t seen any build up of residue from soap like you’d see with all plastic bottles. All in all, I’d order these bottles again!