The chair is excellent, without a doubt the materials, the lumbar support and the versatility it has is quite good, but I don't know if it is completely comfortable, I mean, I have a $60 chair that seems much more comfortable (except for the lumbar support).When I sit in the Iskur XL I feel too tight in the legs, I am a person who is 1.90, and weighs 110kg, I have quite prominent legs and hips, because of this my legs are glued to each other without any kind of mobility, plus it has a kind of leSee full review