Just got a new 3ds for my b day, one that both me and a friend can use. Had to get the first one replaced though, since the firm ware was messed up, as in it was trying to load a game and it got stuck on the black screen of death. Only way out was by pressing on the power button for a bit. Then it shut down and I was able to restart the system normally. Still returned it, since I wasn't sure if the system was fully ok.
Thank god the store let me exchange it for another one and they took $20 off the top of the price so I could get another ecard in order to replace the games that I'd lost on the other system.
So far this one is working well.
Got Super Mario Land, Legend of Zelda: Oracle of Seasons (beat Oracle of Ages years ago and wanted to play this one for quite awhile) and Legend of Zelda: Link's Awakening. All off of the eshop. As for normal games: I got Legend of Zelda: Ocarina of Time and Dementium: The Ward (which, sadly I have to return...since that was the game that had some trouble loading originally on the other 3ds and I don't want to chance it).
Also got Kid Icarus: Uprising for free with my 3ds (which I got to keep when I exchanged my 3ds for another one). So far it's pretty good.