Only thing I'd suggest is a mention that you can
try the closest screen resolution match, in this case, the 2560x1024 resolution.
I've done both (used the 2560x1024 file, and canceled and let the UI scale automatically), and when I picked the 2560x1024 settings file as a starting point, it saved me time.
Several of the windows (compass with loc, date/time with zonename) had different default settings if I cancelled out of the resolution selection window.
The docs made it sound like I
had to click cancel when selecting the resolution file, since the 2560x1600 doesn't exist. Otherwise, the instructions are clean, simple, and completely usable.
So 2560x1600 users, try using the 2560x1024 first. That's my recommendation.
Did I mention I love the UI?