have anyone here used this product in a 700r4?

 

I'm certain someone here has tried it, but is probably ashamed to admit it.

I've used the TCI trans fix - Bands, clutches, steels, seals, and separator plates. It works fairly well.

If you think about it, all a fluid can do is either add a contaminant to improve friction, or change the viscosity to affect seals. It really doesn't "fix" anything, just delaying the real fix.