I have the G50 with the i3 processor, 4 GB RAM and 1 TB hard drive. I have had it for 2 months and like it so far. I like its Dolby sound and the slim design. Windows 10 took some getting used to, but after a while its easy to navigate. I have bought it for rs.46, 998/- for 15.6 inches of HD screen
As its a Lenovo its trustable brand and well known for technologies in computers and smartphones as well
In terms of performance it has a really fast Intel i5 5th generation processor it is locked with 4 GB of RAM which can be also be upgraded further for 16 GB,
It has a good 1 TB that is(1000 GB) hard disk as its very common for laptops with as such a price range.
The battery life of the laptop is also very good though in terms of a normal usage it works very good with long time power delivery, While with usage in terms of gaming using AMD dedication to the game application it works a bit faster but also drains the battery faster as its all about the power delivery to Graphical Processor