That it is a driver's boat, best for those who like to paddle through rapids rather than to drift. In my opinion the Diesel is the 'sportiest' way to get down class 5. It exemplifies what I like best about planing hulls for river running, and doesn't get pushed in powerful ww like rounder boats do. I'm not sure what you mean by snappy - I assume you mean turning quickly?
One of the things I like about the Diesel is you can control how hard it carves. With slight edge, it can 'slide' into eddies very smoothly. At the other extreme, with a LOT of edging I find that it carves a super controlled turn into eddies, and you can use this to stop on a dime when speeding into micro eddies.