in terms of the hp numbers its more like a 750 then a true 1000, so you wont get that crazy surge up top. but remember it is still a very fast bike, deceptively fast. so stay on your toes and be ready to use them brakes and leaning techniques, things come at you fast on this big girl! the torque is up there with the 1000s so be ready for learning to apply the throttle really smooth in the turns and on loose surfaces, the back will kick out if you dont. other then that, it is a very stable platform, and can handle a lot of abuse.
you will hate the gas mileage tho, after the 60+- mpg of the 250 you drop to an honest 25-30 mpg of this beast. not fun! other then that: change your oil, filters, brake fluid, coolant, go over the tires (condition and air pressure) and hoses and you should be all set.
2003 ZZR1200 - Galfer Lines, EBC HH Pads, Corbin Beetle Bags and Seat, Genmar Risers, Muzzy Full System. - Street.
2007 RSV1000R - Penske triple clicker, Ohlins forks, Ohlins steering damper, Leo Vince titanium full system, race ECU, Brembo mono-blocks, Braided lines, Race battery, etc.. - Track whore.
2004 Hemi Durango - Tow duty