258 + 173 = 431
I went about 3 yards far, so the hole played 428, which does seem a little long, but it is a bit of a dog-leg right. (My tee shot cut the corner sharp, landing right next to the bunker on the right. On another trial, the hole did indeed play something along the lines of 450 yards.)
The only thing that I found quite odd is that after a 258 yard teeshot, I was169 yards out, when I should've only been about 150 yards out (143 if the hole were a perfect, straight line.) The approach plays slightly longer than its nominal yardage (I hit it 174 yards on my meter,) but that's only because you have to get it up and over a bunker. If It weren't for that, I would've played the 169-yrd shot as 170 yards.
The hole does appear to play longer than the hole info claims, even adjusting for the 6-8 -degree dogleg, but at least the distance on the approach shot is accurate. So long as you go by what your aimer's distance is telling you, you should be fine.