I am at my 24 hour mark.
I am streaming on my samsung TV to my nas a movie and ipad to my dish, both are on 5GHz band as my iphone 6+, all is still perfect!!

With beamforming on!!
I have also set the SSID on both bands to the same, switching between the 2.4 and 5GHz seems clunky now on the IOS, so I think I know why apple tried to do that funky wifi method with IOS 8.0-8.3, that other method switched much better and smoother, but created havok. It does switch now but just takes time ~45 seconds, It does take a long time if at all to go from 2.4 to 5GHz, and that is with different SSID's or the same. But NO problems at all so far.
If no errors or anything occurs, you will most likely hear from me tomorrow.
Cheers All!!!!
EDIT: just played another movie and all is perfect, I am going to load this on my friends this weekend to make sure it's not me, or my router broke and fixed itself. I am afraid to make any changes now that it is just working, that is a change of words.