I really like the polish of the site. The animations are a nice subtle touch and everything is pretty distinct enough to not be overwhelming at all on the report view.
For a while I was in charge of fraud screening for a high risk company selling software - about half the incoming orders were fraud, and their transaction scoring system was quite advanced, to the point we could see the name and even pictures of the customer.
This must be great for those companies who 1. Have time to hand screen every customer 2. Don't care about their few customers enough to "white glove" them.
Having just been attacked by a bunch of credit card fraudsters and having to try to unwind the fraudulent transactions, I'm a big fan of moves like this. Thanks Braintree!
The so-alpha-I-don't-have-a-domain-name version is here: http://merchantprotector.herokuapp.com/