The card worked
I was a first time user when I purchased the Grubhub card ($50 value).  The card was easy to activate and use.  It was also  convenient but using the card came with a lot of additional charges when used: food taxes, tips, delivery, service charges.  My first $13.99 meal order came to over $21.00 due to the additional charges.  My second order was about the same.  I wanted to support restaurants due to  crises but it difficult with all the additional charges.
Rating: 4 stars