Xperia 1 V vs 1 VI.

I'd like to ask previous 1V owners who have switched to the 1VI what their experience with the phone has been for a year of use and what you are happy with and what you are not. I am asking since my Xperia 1V is under complaint and in a few days the statutory deadline to settle the complaint will expire. I intend to claim a refund and would love to have the xperia again. In my country you can still get the VI in the red variant which I am very tempted by. I would like to know your opinion. Thank you in advance for your answers.