Iam using sony Xperia x from lats 2+ yrs and haven’t encountred any single problem with Xperia . I have used it double of it’s value.
This phone sucks. I am using it for more than one year. Battery life decreases a lot while just moving around in the phone at minimum brightness and the phone can easily get hot so fast even when using it for simple tasks like using whatsapp, instagram. Kitkat was better.