Unusable. Smooth approach into Redding and then on landing, frame rate nears 1 fps when looking toward terminal buildings. This is a huge shame as it looks like a nice job has been done on the buildings, but optimisation is desperately needed. Far worse performance than Heathrow/JFK etc.
All credit to the developer for the level of detail, even the font on the terminal is correct (average developers just use Calibri or Arial for everything). But it's too much detail, and hasn't been done efficiently. 7Gb is too much for an airport of this size. Just looking through my airport folder and Schiphol, Manchester and Munich are all less than half that. I haven't got the best PC on the market, but it was top spec when I bought it, and I can count the frames as the aircraft taxies sluggishly around. Really could benefit from optimisation. Shame, as I've paid for this and unlikely to use it again.