agree with sibling comment - what exactly happens when i sign up? so i get a link to send people, what does the user see? how do they pay? etc. these are the first questions i have and should be answered on the landing page, maybe with a video demo.

Another bit of feedback - imo remove the end bit of this sentence, in your FAQ re. pricing: "Simple. It's 5% + $0.30 for each transaction. We're working hard to get this lower.". You have just put the idea in my head that 5% + 0.3 is too much. now i have doubts. maybe now i should shop around? or roll my own? or wait for prices to go down? no need to sow this seed. 5% + 0.3, and you are covering transaction costs? total bargain