People that lazy they cant enter a flightplan in an FMC? These are medium range aircraft and it isn't that difficult or time consuming to manually enter a flight plan. In fact, I find in more immersive. Now if you fly in Europe I somewhat understand it with their somewhat ridiculous 50 airport procedures and 25 million routes. Simbrief, like many things in life today has led to laziness, no thinking involved IMO. Take the quick and easy route! I still use it to generate routes, fuel and passenger loads but manually enter the data. Great TOOL.