Awful. Supposedly I signed for a delivery that never arrived at my office (where a concierge man's the front desk 24/7). Even though Hermes' parcel tracking says that the delivery attempt failed, Zalando refuse to to refund me although the delivery is already more than a week overdue. Their customer support keep on saying they'll get back to me, but after ten days of chasing I still haven't heard from them. Probably the worst online experience I've ever had.