Works great. I have sciatica and this helps to relieve some pressure from sitting. This is a great memory foam cushion for office chairs or your couch. You really can feel the difference. This is thick and feels like it will last for a really long time. I’ve been using mine for a couple of weeks and already feel a little better. The cover is removable for washing and the stitching is done really well. I recommend this to anyone who has to sit for more than a few hours. If this review was helpful in any way, please let me know by clicking on helpful. Thank you so much!! 🙂 ..More