Im not too sure how much it actually learns. Usually most transmissions are preprogrammed with a finite amount of maps, and when it rolls off with its first owner/after resetting the transmission ECU with its second, the ECU is suppose to match as closely as possible driver habits with a preprogrammed map. It wont constantly adapt.I didnt think of that, but it is a learning transmission. If his wife's been driving it then you jump in, it might be totally different feeling based on your different driving patterns. Our new Toyota took about 300 miles before it calmed down a lot.
Also, if it has a sport mode try that. It will hold gears far longer. Some like it better.