I was a owner of Sony Xperia SP in 2014 and had some hard times with it.The device itself is a outdated version in its own time.
There were no systematic update after its first install.Jelly Bean is okay, but, when there are 2 other generations of update we at least want to get a newer version in a Sony mobile.Moreover, most of the apps and games were not supported due to 1 GB ram.The storage of 8GB was decent but not worthy.It is not a value for money at the current time.