They are more typical Asian ratsnake temperament. Definitely on the feisty side! You want to keep handling down a bit because too much can put them off feed but 5 to 15 minutes a day while they are not digesting food calms them down pretty good. Our male is decent to handle, we've even taken him to shows and allowed a few people to handle him, the mom to these is pretty opinionated and doesn't like being handled pretty much any time. Other adult female we have varies, sometimes she's fine with being handled and sometimes not! These are definitely not for someone afraid of being bitten, as the youngsters are going to bite you at least a few times.
I don't generally have the time to really work with the babies but did have a friend want one, so I chose her one of the calmest and then worked with it for a month, making sure to handle it at least once a day for 5 to 10 minutes and that helped a ton. They are still a very fast snake while young and will earn those racing stripes they have!
They are a very reasonable size, generally around the same width as a corn but a bit shorter. 3' to 4' is typical, females are usually a little bigger than males.
Their husbandry is fairly easy but different from a corn. The biggest thing is that they don't tolerate higher temps well and exposure to 85 degrees plus can kill them fairly fast.
Here is a good care sheet on them if you are interested.
http://www.reptilesmagazine.com/Snak...us-Rat-Snakes/