I have been using past few week while it was in Alpha and I got say, its my favorite service for drink runs like sodas/juices/liquors. Def going to become a regular user. Gonna be following with much interest.

Also, to add to the conversation.It all about timing, right? Now with Amazon being as big as it is and we see companies like Rewinery, Exec, Postmates smashing into this on-demand local delivery space. The time seems ideal for a company like Instacart. I do miss WebVan though.