Love the chair.  I did have some difficulty putting the caster wheels on, but, when I contacted Wayfair they immediatley got the manufacturer to contact me to address the issue.  The instructions that came with the chair where mostly easy except when it got to the casters.  I wasn't sure whether I had to try and screw them in or just push them in, and because they are plastic I was leary to push to hard.  It turned out it was important to ensure the caster had a straight alignment into the hole and very, very hard push was needed.  My hand was sore after the five.  That was the only not so nice thing about assembly but, turned out well and love the chair.