Sim is not unplayable for me, but I sympathise with those who can’t get loaded at all or are continually CTD-ing in flight and hopefully the patch will improve this a lot. I’ve completed a couple of more legs of my round the world trip, and you can see my progress/screenshots linked below. Had a couple of CTDs on leg 76 which was annoying (luckily FlightControlReplay to the rescue) and had a fair few long freezes on leg 77 (but see here for a potential workaround: Possible workaround to unfreeze from long freezes)