That adapter will only work in TTL with flashes that support the non-standard F3 TTL protocols and have a standard hot shoe. If you look at Nikon's AS-17 or the Sunpak NE-3D F3 module, you'll see they have a switch setup for inputting the ISO film speed. It might work with a SB16B with the hot shoe module, haven't tried it, my F3 type flashes all have the funky F3 foot.
Otherwise it works fine for any Auto mode thyristor type flash, and costs less that the Nikon equivalent.