We have also been without car and therefore have done many on-line orders with Eroski (we own our property here, not sure if this is a requirement to open account). Deliveries always within time-slot. We did have an issue with substituted items, as we set the flag for all items not to be substituted and did receive some. The sub items should arrive in yellow plastic bags, although not in our case. However, contacted Eroski on-line customer service, who were great and refunded for those items. Frozen items just about received ok, although the delivery van did not have chillers. Overall, I recommend.