It suited me immediately, I didn't need any adjustment time and I sleep very comfortably. I wanted it a little taller, it says 16cm height but I measured 14.5cm. Although when I lie down I feel like it's pressing on my shoulder due to the height, when I wake up I have no numbness and sleep very well.

If someone wants a medium-soft then it is a good choice.
If they prefer sleeping on their side then the firm one.

It is one of the best pillows I have ever bought in my life, and I am demanding when it comes to pillows. I have had it for 1 year and it has significantly improved the quality of my sleep. It starts off as medium firmness but softens over time, without losing its support

The neck and head are well ventilated, headaches have decreased, it feels like sleeping on clouds. It has bounce when you move your head left - right

After 6 months of use, it tore apart in the wash. It went in the trash.
While using it, it was quite thick and inflexible material. I woke up with headaches.

Initially, it is somewhat tall as it is the high profile version for those who sleep on their back or side. Light plastic smell. Very cool. Great support for the neck and head. In one month, it has softened quite a bit and now it is perfect and the smell has also gone away. It is not ideal for those who sleep on their stomach (they may need something thinner), but I have not regretted the purchase at all.

Well, the pillow is amazing. My baby has been sleeping on it since he was 7 months old. Perfect. Additionally, it can be washed in the washing machine, as it has been soaked countless times. And it doesn't get damaged. It's worth every penny