Well,
It's a gaming laptop so it will be heavier than a normal one (it weighs ~4.5kg), and thats pretty heavy. In the end it depends on you, as you will be the one carrying it. Gaming laptops are not the most portable, nor do they have the best battery life (you might have to carry your charger with you). However if you are willing to live with those compromises than you will have a pretty powerful desktop alternative.
Asus makes some nice laptops, but it all comes down to how you configure it. Overall Alienware, although I find it overpriced, offers some of the best laptop designs. They usually offer more powerful graphic cards too. Overall I would recommend Asus, Alienware, or Origin if you are looking for a gaming laptop.
Then again you are spending close to $2000 for this, so you chould get an ultrabook or something more portable for ~$800-1000, and spend the rest on a nice gaming desktop.
Hope this helps!