2Checkout sucks horribly. ONLY if you have no other option, then consider them, other than that, just don't.
They have a fee of 3.9% and adds 1.5% for international sales (which you'll make) and most of the time, it raises the fees for dropshipping websites for up to 8.5%. Not to mention that they hate dropshipping and will hold 25% of your money for at least 90 days.