Sony Xperia L

My cousion has ordered a Sony Xperia L.

It has Android 4.1.

Sony has released Android 4.2.2 for Sony Xperia L. I searched & also checked out Sony forum & learned that most of the users had probs with the upgrade like auto restart often, camera giving blurry images, low sound, storage showing low space, etc… I dont know if the fix update have been released or not. Nothing that I could find in their forum or search.

I am confused as to ask my cousin to upgrade or not.

Sony Xperia L users, your xperiences plzz.

By the way, is the phone good?