Only just got my 3DS back from repairs yesterday and might now have to send it back as I can't get on the shop! Managed to finish the first dungeon last night though, I must say having played though the virtual console version a few months ago this game looks amazing, such an improvement over the original. The gyro works really well as well, aiming felt natural strait away.
The 3D is also the best I've seen on the system, really draws you in. I was also really surprised that I didn't keep losing the 3D effect when moving the system to aim, found my head was moving with it which actually feels amazing, to move your head around the room to look around a room in the game.