I've put about 1,000 miles on the Odyssey so far since we've owned it and I noticed the transmission shifts are firmer than what I'm used to in older 4spd GM products. My GM vehicles are old and high miles so not a fair comparison, but I noticed the up shifts and down shifts are quiet apparent. It's not slamming or bumping, but the shifts do seem somewhat firm, kind of like a dual clutch auto trans I suppose, or maybe similar to the shift feel when manually shifting an automatic. I'm not sure if this is normal on these vans or if I should do the 3x trans drain and fill procedure. The fluid is nice and red, does not smell burnt and it is at the appropriate level.