I got this chair for my brother who is taking virtual school at home during the pandemic. He told me his body and butt ache after sitting on the regular chair for long time，So I plan to buy a ergonomic chair for him. Its easy to assemble with the step by step instruction. The height，armrests，Back and neck support are adjustable. It fit my borther perfectly after ajustments. Its made of breathable mesh which can prevent sweating. The seat base is sturdy and cozy with appropriate softness. Im so delighted my brother likes it which relieve his body ache. Its well-built and fabulous.