We love these bar stools. They adjust to accommodate whatever height we want for our bar stool and the hydraulics work excellent on all of our bar stools. My picture shows three various heights - the shortest, medium height, and the tallest it gets. The gray is truly a light gray and true to the picture in addition to being super comfortable to sit on.  They were SUPER easy to put together. I have absolutely no complaints about these bar stools. (Note: You do have to sit on them to lower them, but it's really not an issue.)