To be frank it is phone with lot of issues like battery is decent there are motherboard issues as well but when it comes to performance no phone in this price range can match this phone.
I am using it for 3 years also I have to change the motherboard at the very early stage. But since then I have never encountered anything that cause my experience laggy.
And I recommend this phones to those who wants pure gaming performance and to those who are very much attracted to custom roms as it has a very big community that keeps evolving.