Their software is terrible
Their software is terrible. It randomly loses rates and only shows you their partners, doesn't calculate fees correctly so it recommends buying through third party sites for a higher rate and worse terms. The expense system had no thought put into it at all, if you make a mistake you have to get your accountant to fix it because there's no option to edit it since the auto approve is instant. It's just the worst. And their support is so slow and unable to help you either.