In the past few days I've received my Japanese 3DS with Project X Zone - it's a lot of fun! Having never owned a 3DS before now I was pleasantly surprised at how good the e-shop was, there's a ton of good demos on there (EX Troopers, Bravely Default, Taiko no Tasujin, Monster Hunter, etc) and unlike my experiences with the Wii shop I've actually been able to casually browse - and find things!