My first attempt at sending BTC to this service failed - my account didn't get credited at all. Scrat Acorns responded quickly to my email and also gave me a generous amount of extra credit so that I could test the service fully.
As everyone has been saying, the interface is slick. My test (well seeded) torrent was downloaded at 9MB/s. Download from the server to my computer was equally fast. What more could one ask for?
If GLBSE were still alive, I'd be dumping BitcoinTorrentz shares right about now.