Out of three of these chairs, we’ve replaced one chair because of the wobble and now the replacement wobbles in less than a year with a 100lb receptionist. AllModern  Wayfair keeps promising to send a “chair medic” week after week. Nobody ever comes and AllModern acts like it’s a new request every week. Maybe a stall tactic until our warranty expires, I guess. We’re VERY disappointed by the quality of the chairs and the support of the seller. We had to order 2 new different chairs while the others “wait” for resolution. Looks like we’re not the only ones to be taken by these wobbly expensive chairs and bad support.