Ultimate Terrain X / Ground Environment X

If you can afford them, these are the addons that are absolute must haves for me, as they take a great product and make it amazing:FS GenesisActive SkyX GraphicsFlight EnvironmentXGround EnvironmentXUltimate TerrainScenery Tech landclassesSome features of each are duplicated, but all have their own special benefits and features that make them indespensible.The things I look for in a product are ease of installation, performance, customer support and updates, and above all, they do what they say they will do. All of the above are top shelf and transform FSX completly.