I'm not sure if the response is returned as an array, or a string like that, but there should be something seperating "Completed Reason" like a comma.Payment processor response:
Accepted Status: Completed Reason: none ( TransactionType: express-checkout, GrossAmount: 81.98, FeeAmount: 2.68, TaxAmount: 0.00)
If it's an imploded array, imploding with ',' would be good.
Second, for paypal payments, if paypal isn't clicked on the cart page, it shows you a total in paypal. This total shows everything as one lump sum. It don't see a problem with all the line items being lumped, but paypal tracks taxes, so it would be nice if taxes and shipping were put in their proper fields. I'm pretty sure paypal lets you specify which is tax and shipping. Of course, seeing full line items wouldn't be a bad thing either, but not greatly important.