Great plug-in, Outstanding Service – I installed the Nice PayPal Button plug-in and work exactly as indicated on the TriniTronic documentation. I was really pleased that the plug-in had a means of accommodating the PayPal test account email address. This made testing my button configuration much easier. The greatest thing about using this plug-in was the service I received. I needed the ability for a user to enter a quantity with the button on my client site that was not a feature of the button. I contact TriniTronics and they actually added the feature to the plug-in and sent me the update within a couple hours. This is simply outstanding. I would most surely purchase other products from this vendor.