When I was using this for 2 months, next month the os was crashed & I got battery problem I went give for service they have taken for 3 months for this product but after servicing until now I did not get any problem. it is very easy to use this product. design was nice & no that much style I think so . I love features of this product.but very very poor battery life per day 3 to 4 time go for charging. other wise it is amazing product with low price . it love this product.