I have used AMSOIL Signature Series transmission and gear fluids for almost 20 years and have had nothing but great experience with them.
My brother had a 2005 Honda van that had a few transmissionmissions replaced under warranty, out of warranty it blew again. I rebuilt it using OE parts and used Amsoil regular SS fluid. It went over 150K and was still perfect, interestingly there is no pan on this one and the filter/strainer is inside the unit so when I did the job I changed it and added an external filter also. I am not a transmissionmission guy just an old wrench turner but I manage to find my way around, nothing too scary in there.
I did a line off exchange and I was amazed at the color of the fluid, it still looked like brand new with well over 100K on the fluid, I bet it had many more thousands of miles left in it. I don't use it in everything especially some Euro units with oddball certs but most others no problem, it is very good stuff.