I love this ergonomic stool! I received it in September 2018 and have used it in the office every day since. Before I purchased this stool, I was sitting in a standard chair and noticed some tightness in my hips after a long day. Using the stool everyday, I have noticed greater flexibility in my hips and a slight challenge for my core as well. At 5'6", it keeps me at the right height for my desk/keyboard (no weird wrist angles) and the design allows me to squirm my position during the day. I love it, and my coworkers all ask where I got it!