Not OP, but I tried Annex with Unreal 4 and the symlinks caused problems with the editor. Obviously that's a UE4 issue rather than an Annex issue, but it meant

Not OP, but I tried Annex with Unreal 4 and the symlinks caused problems with the editor. Obviously that's a UE4 issue rather than an Annex issue, but it meant LFS was the only reasonable option at the time when I tested (~12 months ago).