Physics

This game has some of the best physics you can get from a flight simulator, and is a great introduction into flight simulators coming in at only $25

Scenery

The scenery is meh, it cant stand up to new games like MFS but what do you expect from a fifteen year old game. It has worldwide scenery and airports, so you will be able to fly in your home town airport.

Modding

This is where things get interesting Modding is hard but adds so much to the game. With mods you can improve the scenery, add more planes and much much more. It is fairly hard to do because it lacks a workshop but once you figure it out it is great.

TLDR

Great intro to flight simulators.