Hello friends Asus R558UR is very good laptop because I bought this laptop one month before.It is the best laptop you can get in 40, 000 price range and you can easily upgrade it. I like it the most because it is stylish and powerful mainstream laptop that is powered by latest Dual core 6th generation Intel Core i5 6200U processor having a clock speed of 2.3 GHz with turbo boost upto 2.8 GHz. It sports 4GB DDR4 RAM( expandable upto 8GB) which is ultra fast and is currently available only in high end gaming machines. it is very easy to use .its quality is very good. I thing it is the best laptopin this ammount.asus is developing companyso its cutomer service is also to good