Having just moved *without a car* from a place where virtually every known foodstuff was available within a 10 minutes' walk or a short subway ride (central Brooklyn) to a town without a grocery store in Bergen County, NJ, I am very happy to report that my experience with Peapod so far is a very good one.
The meat and produce we've ordered sight unseen has been cheaper and better than the usual run of NY supermarket stuff (had a particularly good non-Perdue roaster this week, actually tasted like...chicken!). Deliveries are on time (you pick a time and they narrow the ETA down to a 2-hour window on the day of) and all perishables are received cold.
It's nice not to have to schlep all of the stuff (flour, sugar, cat litter...which one can we carry this trip?) back to the cave on our own, as well. A good solution for the hapless carless NYer in NJ. Others have experiences with this service or others in your area?