It isn't the best computer at all. And for gaming? It would be terrible. For a laptop, you're better off going with a gaming laptop, such as Alienware... (even though building a gaming PC would be better).
For Minecraft, this computer would probably run it okay. It has 6 GB of RAM and an Intel Core i5. But since the graphics card is integrated... you are losing a lot of performance. For $700, I would say it isn't worth it. Just save up to build a PC and you WILL be much happier.