Purchased a Herman Miller chair from Seatingmind in May. Product was received promptly and was as described. The chair developed a crack in the arm cushion, possibly due to the support not extending the full length of the cushion or because of a material defect. I requested a replacement cushion, but was told that "the warranty doesn't cover that". There was no clause in the warranty that would have excluded this problem that happened after only 6 months of use. Customer support is not responding to my request for a reason why the item is excluded. Not happy about this experience.