The worst! It doesn't fit securely on the office chair and keeps falling out of place. It's a waste of money.

I have bought it a few days ago, it does its job but it wears out a lot which means that soon there will be nothing left of the fabric

Good value for money, I had bought 2 a few months ago and even though I use them for hours, they turned out very well.

Unfortunately, while it is relatively comfortable, the fabric is terrible. It sheds a lot, resulting in lint on clothes and the floor.

It is comfortable, soft, and convenient.

However, I can't understand why no one else has mentioned in the comments that it sheds lint. I have vacuumed it, washed it... nothing, as long as it is rubbed, it sheds lint. The whole house is filled with lint to a tragic extent, because no one mentions it, I suspect that the store I bought it from sent me a lower quality one.

As mentioned by others, it changes the driving experience, you don't want to drive without it. The strap, more accurately the rubber it has to be worn through chairs, does not fit on the car seat, but for office chairs it's no problem, you can set it up and it's definitely value for money.

I also got a second one for an office chair, which came with a velvet fabric, a memory foam pillow, and a clip to connect the straps, and it has a similar feeling in the middle.
Be careful for those who receive it with the velvet cover, turn it around and ask for another batch, it has emptied after 3 washes and it still sheds hair!

Attention, the back of the pillow is flat. So it is effective when combined with a seat that has a flat back and does not have a curve. Therefore, the pillow is uncomfortable when placed on an ergonomic office chair or an ergonomic car seat.

Very good, soft as needed. Supports the waist well. Someone may have difficulty supporting it on the back of the chair. I added extra straps. Worth the money.

Basically, although it says seat cushion, it is not! It is for the back in the middle at the curve. It is supported by the seat back with a strap that it has and supports the waist. Okay, that's why it works. But it's not a seat as it says! I wouldn't have bought it if I had understood exactly what it is! I was looking for a seat!