I'll be honest. I didn't know much about the various flash carts, but it just seemed at the time it was touted as "Thee Card" so for christmas my dad ended up buying it for me. For my DSlite of course. It always worked well and I never had issues. I even got into running spinal codes Imenu for it, and they had the other alternative Bagplug/Bagmenu and that was cool as well. I got the R4i pro and never even used it. I dont even think I opened it from the packaging. I also just picked up that DSone clone that just came out a few weeks ago on alibaba. Seems to be pretty legit and so far so good.