Too slow Bad finishing. Review on Samsung Galaxy S4

Would like to tell about my experience with samsung s4 bought it for 22000 four years back new black edition model everything looked perfect but after using it I found many drawbacks first of all the camera is pretuding so when I place it on a table it is more prone to scratches the front camera is absolutely useless which clicks blurred images . After two years the side black panel started loosing its colour so I went to a service centre and decided to give it a metallic finish changing the whole side panel with metallic one but this solution was not too effective and now it looks bad . I have attached a photo of it . Faced many speed issues like if I open my mobile data after two or three days receiving number of whatsapp msgs hangs my phone for five long minutes . Battery now takes a significant amount of time to charge and discharges very quickly so overall will rate it 2 out of 5 .