I’ve been using this phone since last 2 years. this was the outstanding device in way many aspects but after the lollipop update it got nothing but slower that before and even heating up more than often it does before. no doubt after the lollipop update performance issues arrises as well as it started draining out battery faster maybe because of poor ram management or the bulky UI . samsung really needs to focus on not to downgrade the actual performance by providing the laggy updates of its older devices which clearly reflects its business stratergy to increase its latest model’s sales by dowgrading the overall performance quality of its older models.