It's similar to Wepay's except with the use of Wepay's API you're tied to their gateway and thus their rates as well. With this you'll have your choice of payment gateway (Stripe, etc) while also being able to use the features you love for Wepay, essentially meaning you should be able to get the best rates possible as well as crowdfund the things you like.

Not necessarily "better" really just a different animal altogether