just had a quick look at it but i've had the best experience adding a paid option to it as soon as it works enough to support this. start with low prices, but get somebody to actually pay for it.
it might take weeks to get a payment, you can route up paypal for it, make it a yearly payment one off fee or something. keep it low.
as soon as you have someone paying for it, your speed will greatly increase, you'll be working and focusing more on working around that person to make their experience top notch. you'll most likely receive an e-mail from that person soon. it's not your regular type of customer. this person is special, he/her will start e-mailing you with ideas. work with them, see what you can do to make it happen.
the rest will be history. if you reach this point, it'll go fast.
edit:
and just to add, in my last project, i've had to refund over 25 customers (my decision, didn't ask for it), since the service was down for a few days, some things went undetected, stuff like that. it helps making sure you work smarter and more aware moving forward.
it might take weeks to get a payment, you can route up paypal for it, make it a yearly payment one off fee or something. keep it low.
as soon as you have someone paying for it, your speed will greatly increase, you'll be working and focusing more on working around that person to make their experience top notch. you'll most likely receive an e-mail from that person soon. it's not your regular type of customer. this person is special, he/her will start e-mailing you with ideas. work with them, see what you can do to make it happen.
the rest will be history. if you reach this point, it'll go fast.
edit: and just to add, in my last project, i've had to refund over 25 customers (my decision, didn't ask for it), since the service was down for a few days, some things went undetected, stuff like that. it helps making sure you work smarter and more aware moving forward.