I bought this handset in 2013 & till date it is performing without any complain. Had read so many bad reviews about Samsung smartphones becoming sluggish overtime however have not come across any such incident so far. The original battery that came with the phone exhausted its life just last month. I hope the new battery also gives a satisfactory performance.
Only aspect about the phone that I found to be unsatisfactory was the glossy paint coating on 4 sides of the phone which has come off with time.
Thank you Samsung for your excellent products.