I had a coupon for Grubhub from a restaurant I'd tried once. Wasted half my lunch hour trying to get the lousy site to let me pay via PayPal. Total waste of time, too late to take time to drive to get the order if I could ever get the thing to work. Their customer service claimed there was no order up but their own site showed I had an order pending. Terrible waste of time and effort and no lunch today as a result. Avoid this even if you have a coupon "lure", the "convenience" of this site is lost by how inadequate it is for the task it is designed to fulfill.