Several of my friends have raved about Instacart recently, saying the convenience and time savings are well worth the meager delivery fees. Normally I'm not that into such services. However, I desperately needed groceries yesterday, but I was feeling sick and didn't want to get out of the house. So I decided to give it a try.

I got on the site as a first-time user and entered my zip code. From a list of stores around the area, I pointed it to a grocery store in my neighborhood. Then I started searching for items.

When I saw the prices on the Instacart list, I did a double-take. Turns out there is a margin, and it is at least 20%, if not much more. The reason I noticed this is because I shop at that store every week and am very familiar with the prices of the items I was browsing. Keep in mind I was browsing around 11 am, with a delivery window of 2-3pm, so it wasn't (or shouldn't have been) subject to surge pricing either.

And like you say, the exact margin is hidden, and even the fact that they do have a margin isn't explicitly stated anywhere that I could see. So if I wasn't familiar with the prices at that specific store, I may have just gone with it.

This lack of transparency (and in fact I can go one step further and claim it is purposeful obfuscation) immediately eliminated all my trust in Instacart. I closed the window without completing my order. I have since received three emails from them (in 24 hours) reminding me that I have an incomplete order. Suffice it to say, I have no intention of logging back in, ever.