I sure hope future updates or hotfixes help. I'm running on "high end", lowered my framerate to 30, turned vsync off, ran it without programs in the background, and it still crashes around 30 minutes.
I went back to try and play FSX since I love some of the payware addons, but the scenery is so empty and fake in comparison. Frustrating right now, and I've started playing other games in retaliation.