I use both temporal sets on the Mobius. It's a lot if fun. The only times I ever get killed, though, are when using the Manheim device. But like others have said, it can be useful in the right situations. I especially like to use it if I've got a swarm of fighters annoying the hell out of me. My duplicates take care of them, so I can get back to the main fight.
Yes, I'd also like to see it modified. Giving them the same gear as your main ship would be awesome.