Playa Bike Repair review for Upcharge Fees & Product Addons

The app seems to be useful only for flat fees. For fees of a percentage, it's straight up mayhem. They create a product that is $0.01 and apply x number of them depending on the total cost in the cart. So if the total charge is $200, and you want to charge a 3% fee, that's $6 ... So it adds 600 of these 'fee products' charging 1 cent to your cart, so the customer's cart says 601 items in the cart. That's going to freak out some of my customers for sure, no thank you.