I'm guessing the folks that dont like the 8sp havent driven a vehicle with it.
I own a 8sp, and a 10sp. And they are both nicer than a 4sp or 6sp.
A hemi going through 8 gears at WOT is wonderful music. My ecoboost going through 10 gears doesnt sound nearly as nice, but it gets there quicker.
And these trans are way better for towing. They will find the correct gear and hold it there. No more TC unlocking and locking all day long.
Im sure someone will tell me their 6sp doesnt do that, but I have thousands of towing miles in the mountains with a 12 duramax/allison, and yeah the TC unlocks.