Anyone who has back problems, it makes them worse!
A bit expensive for its construction!
The store where it was purchased was very reliable!

I bought it for my office chair at work due to a herniated disc and back problems, etc. It really saved me, I have seen a huge difference in the 5 months I've been using it. Because it is indeed quite high and essentially consists of 3 cushions, 2 on top (with Velcro underneath) and one single black cushion at the bottom as a base, I have only kept the two top cushions which, with the Velcro, have stuck to the office chair. You can leave as much space between them as you like so that it doesn't put pressure on the coccyx, which I also think helped me a lot. The bottom black cushion is not so ergonomic on its own but it does the job and I have placed it on another chair at home. Overall, it is a very good purchase and I recommend it!

It has many positions where you can place the pillows. You can even use the base or the pillows directly on the chair. I found a position that suited me and solved the small problem I was facing.

It is supposed to be comfortable and not stress the coccyx. It achieves it partially. However, I weigh around 90 kilograms. It needs something more effective.

Amazing pillow, worth 100% of its money. Due to sitting work, I had intense pain in my coccyx for at least a year. From the very first day of testing it and due to its orthopedic construction, I saw a difference. After 10 days of use, the pain was eliminated. It is also extremely comfortable. I highly recommend it.

The best I have tried. It is not tight and at the same time it is comfortable. It also has the ability to adjust the position. Reasonable price and it is not gel that you will definitely get on your pants at some point.

Quality and flexible product. The two ergonomic pillows are placed as close/far as each person prefers. They are effective even if they are taken out of the base and placed directly on the chair - this way the seat height changes minimally.