For the positives: an aesthetic point of view, I find it very successful. touch matte console is nice (compared to the original version). I absolutely love being able to customize the look of the console by changing the shells. The nod to retro ABXY keys is really fun.
I also find the most efficient screens: the colors are richer, deeper. The lighting also seems better (always compared with the first version of the 3DS). Level autonomy, it is still early, but I will try to complete this review in some time.
For the negatives: I like less the included stylus, which is a little more cheap than before and having to do with a screwdriver so if by chance I'm traveling with my console, I has a second battery I fall in the harbor with the first (I quibble a bit, but it's something to consider).
For neutral aspects: 3D has been reworked, the eye-tracking system is quite responsive, immersion is easier and faster, however, I do not use this feature because it makes me tired sight very quickly. The C-Stick is very particular to use, but I think with the habit, its use will be more natural.
Comes a day before the official release, no worries on the part of Amazon, it's perfect. However, my package arrived torn (thank you mail). More fear than harm in the end.