Changin Tyres on XT660Z Tenere - how difficult?

[Wheelie]

I am conscidering buing this bike. I can't remember where, but I read somewhere on the HUBB that it is very difficult to change the tyre on the original rim. What do they mean? Is it true, and to what degree? What is required in terms of skills and tools.

It kind of defeats the purpose to ride with innertubes if I can't replace it in the boonies with a couple of tire irons. I don't want to spend time and money on wheel upgrades unless I really need to - and on a used bike, I might then find better value going for something else.

Changing the rubber on my F650GS Dakar was fairly easy even the first time. I've never had any problems on any other bike either.

What are your thoughts?