Disappointment with the company's plastic bottles. We started with the 150ml glass bottles from the birth of our little one, which had some leaks upon impact, but nothing excessive. We preferred them because of the excellent reviews for colic. Indeed, once we tried a Nuk bottle and understood the difference. As we increased the ml and searched for the corresponding glass bottles that are permanently out of stock, we decided to give the plastic ones a chance (we bought the 270ml ones), so that we wouldn't have to experiment with nipples from another company that the baby might not accept. Whatever I read about the leaks is an understatement!!! With the first impact, milk spills everywhere, hands and sink covered in white. Tapping with the cap and then with the nipple, tapping in circles, diagonally, etc. It is unacceptable for the consumer to have to experiment in order to keep half of the milk in the bottle! Ultimately, based on information from a friend who had the same issue, we removed the green parts (anticolic) upon impact and I can say that it hardly leaks at all. We are now in the 5th month and we have the comfort to do this, as according to our pediatrician, sterilization is now optional. So, for parents who sterilize, it becomes prohibitive to go through this whole process. Only 2 stars for the anticolic system, which of course we no longer need in the 5th month.

INITIAL RATING 5/5
I would buy them again and again forever! The baby accepted them immediately. They don't leak if used correctly, I wonder how some people manage to do it. For me, this bottle is a one-way street, especially with the new options+ system because it resembles the natural nipple and is very easy even for newborns.

------------------------UPDATE--------------------
2 MONTHS LATER

While initially I swore by these bottles, and even mocked those who mentioned leaks in my initial review, I come back regretful and having learned a valuable lesson. But let's start from the beginning. Due to my profession, I have worked with these bottles on several children without any issues. So, when I got my own, I chose them blindly. For the first 20 days or so, everything was going smoothly. But then, intense problems with leaks started. During the night, both me and the baby were miserable from the milk spills. And you know the disturbance this can cause to a newborn who needs to go back to sleep without being bothered too much (if you want to go back to sleep yourself). Without going into too much detail, I searched and tried everything to fix my issue. Videos, reviews, I tried a lot, but nothing improved the situation. After 10-15 days of distress, I decided that as a new mom, I have so many things that truly deserve my attention, and bottles are NOT one of them. I threw away 9 bottles and bought ones from another brand, which don't even require such a complicated cleaning process, and they do their job just fine. That's all I had to say and a piece of advice. Good reviews are nice, but personal opinion is always the best because different things work for different people.