Just my 2 cents, from what I gathered in my 45min messing with a display model it is not bad, just mildly annoying. I think after a few hours your eyes will adjust and it won't be a big deal. But if you are very particular and picky I could see this as being an issue..
You know that there is zoom out zoom in option inside msWord. I think if I use that and make it slightly smaller, it will back to normal....
I wonder.... damn there is still no retina MBP displayed here