Had one for about a week now and like it. Fits my hand much better than the RX200. When I saw the pictures I thought I would hate it, held one at the local B&M and took it home.
Works fine in TC with SS316L at 0.25 ohms. Much like my other Joye-tech chipped mod's. Haven't tried Ti or Ni wire.I use it in power mode so I cannot speak to its TC