I have never managed to make sshfs properly handle network problems (at least as well as NFS), especially after suspend & resume, I'd quite too often end with unusable machine where half of all desktop apps are hanging on some blocking syscall via that sshfs, that will _never_ timeout. Also, sshfs is quite inefficient. It's main advantage is being almost setupless, both client- and serverside. But you don't need that if you want to permanently mount your servers somewhere. I think that properly setting up NFS is worth it, in your case.