This blows the earlier Pokemon games right out of the water!! I cannot bring myself to say just how awesome this game is. Nintendo and Game Freak have really outdone themselves on this one. The graphics are beautiful; it's Nintendo so pixels are not a priority but the overall charm and aesthetic feel of the game is superb. There are some stunning locations, such as the 3D cave with blue stalactites.
Pikachu is available early on in the game as well as a Kanto starter of your choice. Pokemon Amie lets you build bonds with your Pokemon that help them dodge attacks, cure themselves of status conditions, and gain more experience. Super Training is something I don't play with too much, it's more for the serious gamers who care about EV's and things. But I did train my Vaporeon that way once and it's special attack at Lv. 100 went through the roof! And with Mega Evolutions (which can completely turn the tide of battles, both in game and online) the battle dynamics have been made more complex and more interesting. The online features are a blessing. No longer do you have to go into those silly portals in the Pokemon Centre every time you want to trade or battle someone- you can interact with everyone who's online. I also like the fact that you can now choose a darker skinned sprite, which feels more inclusive.
The storyline is mediocre but let's be honest, the perks of a Pokemon game isn't really its plot. Possibly the only downside is the lack of post- game content. Once you defeat the League there's not much to be done except more battling, collecting Mega Stones, etc. It's not like the post game content of White 2, which was more satisfying. Lumiose City can also be a little hard to navigate, and I don't know if I'd count this as a negative but it's so easy to spend all your money on clothes!
Overall, though, this is an excellent entry into Generation 6. It's clear that they've put more effort than ever before into making Pokemon feel new and exciting again, and it pays off.