I would rather get a Acekard 2 + EZ-Flash 3-in-1 slot2 cart. I had a DSTT before and the Acekard 2 completely thrashes it in both performance and overall quality. And now that AKAIO is out the Acekard 2 is, in my opinion, unbeatable at it's price range.
Edit: oh yeah and, at least with AKAIO, the 3-in-1 is natively supported... all functions work perfectly.