Lots of our customers are using Exec as a way to provide their team members with more leisure time. The way I normally pitch it is that if you want to go grocery shopping to get ingredients for a special meal you are going to cook and you will enjoy, then by all means, go for it. If grocery shopping is a chore that you don't look forward to, then outsource it. You should outsource the things you don't want to do to leave more time for the things you want to do.

Personally, I dislike having errands that require me to physically leave the office disrupt my work day, especially on days where I need solid chunks of time programming. Our goal with Exec for Companies is to help teams spend more time doing what they want to do.