Low Quality Smartphone... Review on Samsung Galaxy Core 2

I am having bad experience with my samsung galaxy core 2. It is launched on may by samung. I buy it for 13000 and then islts rate lay down to 7 thousand. I was very sad when I heard the news of drop down price. The phone is too slow and do not works good. It lags a lot and hangs alsom It camera is also not up to grade and front is also too poor. Its ram of 768mb is alsobbad. When I play asphalt 8 airbone it hangs a lot. Sometimes it switchoff also. It looks are quite good and the phone is very heavym It SAR value is also bad. It works on kitkat and they are not giving update of lollipop. The sound quality is bad as it has no bass and clarity is bad. The battery backup does not work for a day . It morning I charge it 100 percent  and evening it comes to 10 percent only by using for daily purposes like calling some chatting, one hour gaming only. The accessories are good as ususal by samsung. Best earphones and good charger. It is avaliable in two colours black and white. It is not up to quality. I am very disappointed with the quality. This phone is not worth to buying. You can try if you have money to waste. Work as ordinary phone of 4 thousand. Low featured mobile. It has tough glass but it is not gorrilla glass so you have to put screen guard or tempered glass. There are mby service centres in the country. There is no problem of service centres but phone is not good. Other trusted brands are also giving smartphone more reliable and with more features. You can buy this phone but  first please ask technical experts for some suggestions for buying this phone. This time samsung not works good but next time I know they will improve and enhance their quality. No comments for buying this phone everything is fifty fifty.