Sandbox Questions

Hi,
I’m evaluating the plugin now in sandbox mode and have questions:
– With the plugin ‘PayPal Options’ disabled I see that the ‘Card Payment’ form has a PayPal icon along with all the credit card icons. It seems there are 2 methods to accept PayPal in your plugin. Why? And what are the benefits/caveats for each option?
– Under ‘Card Payment’ does your plugin also accept Debit Cards? If so, are there any test debit card numbers?
– When I use ‘PayPal Options’ I see a ‘Place Order’ button that does nothing but confuse the order flow for a customer. I found that I need to click the ‘PayPal’ button do proceed with checkout. Is there a way to disable/hide the ‘Place Order’ button? OR is there a way to add text instructions to the ‘PayPal’ button area?
Thank you in advance!