Flyme Os

Havent't downloaded it yet.. but what do you guys think.. seems legit?
http://bbs.gfan.com/forum.php?mod=vi...typeid%3D11554
Its in chinese btw

MX4 Pro flyme account deleting

I have bought my mx4 pro from an online store in Czech.
And its already registered in a flyme account, how to delete the old one, so i could use my own flyme acc? Please help