Ive been using Prear3d for about 3 weeks now and got most of my addons to work with it by just pointing my scenery library to FSX and adding in manually. For planes, I just copied over to the Prepar3d/aircraft directory, then copy over gauges and effects folders. I didnt want to take the chance of screwing up my FSX install. There are some addons like Ultimate traffic 2, FSDT scenery, enbmod, shade and all my Orbx scenery, which I cannot get to work in P3D, Those issues will keep me from going to prepar3d and keep me prefering FSX right now. However, if these products get updated, or new versions for prepar3d come out, Ill move in a heartbeat. PD3 is more efficent at what it does. Although I get the same FPS with it, I do notice it seems more fluid, but cant put my finger on it. I like the interface, but hate the fact that it goes right into the default flight when it starts.
My bigest worry with Prepa3d is if the developers will support it. Orbx has already stated they will release Prepar3d versions of all their scenery at a very low price, but it wont be a free update. Im OK with that. But some companies like flight1 do not approve of porting any of their stuff to P3d and right now, have no plans on supporting it. If it becomes popular, Im sure they will. Right now, Im taking a wait and see approach. Ill get my monthly subscription open to support the developers, even though Ive un-installed it for now, but I think it has a bright future if everyone supports it and flight turns out not to be what everyone hopes for.
Intel Core i7-3770K
GB (4 x 4GB) 240-Pin DDR3 SDRAM DDR3 2000 (PC3 16000)
ASUS GeForce GTX 660 Ti