I am looking to purchase this addon and I see they are working on rev 1.5 just wanted to know anyone who owns this there thoughts.I currently have most US Simflyers and some Freeware and I also have FLY TAMPA -KSAN which is awesome.The concern I have is FPS since KSAN is a smaller field.Thanks in advance

Have you tried the demo? I tried one demo, but I found the performance drop a little too high for my tastes, but then again, I am picky when it comes to framerates.