I did order lunch meat and some produce in my order. Also I got it for FREE since there was a promotion. If I do get charged in the future.. still worth it as it was great..
Here is where I found that promotion when I signed up:
Instacart Help Center - 3 Free Delivery promotion
Also.. Here is pricing when I do have to pay it.. looks like only $3.99 for anything over $35.. but here are details..
Instacart Help Center - Instacart fees and taxes