I really like that they have an option to pay in different currencies, which is very useful if you are from countries where there can be issues finding money (like me). It's difficult sometimes when it comes down to paying back people who funded your project because of exchange rate differences or other reasons - but not too much! The site itself has some problems regarding layout/design as well since this website was made around 2012-2013 so perhaps things could look better now? But overall great service all round :) Have used them many times myself through my own campaigns plus also their help desk services via email etc., always helpful no matter how small issue i may need assistance over!!