S6 Edge plus coming from Vietnam already rooted?

Hello folks,

I just received my EDGE Plus and when I hit the Power, Home and volume down button it has taken me to the Root Custom ROM option with Odin pre-installed..anyone ever had an issue with that before?:confused:

Which device are you coming from? Share your experience!

So I'm still waiting for my ZUK to arrive! It's taking forever!
I bought from AliExpress and shipped via regular post.

I currently have the note 4 so as you can guess, it may not be a very wise switch. But I was very impressed with the phone and ordered it as a birthday gift to myself! :)
I will be comparing them thoroughly!

So which device are you coming from? Share your experience and feel free to compare them pointing out in what areasyou feel it's an upgrade and where it's a downgrade!