I used Lenovo before and again I bought new Lenovo g580. I found it very good and excellent performance. specially the Lenovo centre care that's really care of all the applications and hardware and software. its very light to use without any hassle. I have been used many brand before, but Lenovo performance I found it excellent than other brand. since I bought this laptop I never face any trouble. I love this laptop. Many thanks to Lenovo.