not so bad, but there is tooooooooooooooo many part i even don't know i to use it you need to cut some to make it clearer in the VAB/SPH ! i've try it on a clean instal of KSP cause i got too many mod to make LLL work with them, and ... the part menu was still same size ! with one mod !!! i hope u can make this mod better it will be fun at the end, like B9/KW it will be a fondamental mod i think !