It's one of the best flash cards. Everyone is in love with the R4 but 1) R4's aren't in production meaning every one that's on the internet is a fake (they still work, but aren't the original R4). Plus DSTT is cheaper and is very easy to set up. I bought mine in the last week of September and it's been running smoothly for me since. Love it
If you're planning on getting one. Get the r4 or the dstt (or dstti). Don't do the other ones like acekard or m3 or cyclods.