Welcome in "Boris" - best advice I can give is ride it and enjoy it !!!
Seriously though, if the bike has been looked after, there should be nothing to worry about, as these bikes have no major weak points/flaws.
Those not looked after will likely have a stuck EXUP valve, which as a new owner you might not even notice, but does make big difference to lower end power and response - repairable for a basically competent home mechanic/tinkerer.
For better handling, I'd go for the R6 shock absorber kit upgrade from Devilsyam on here (Luke) and make sure the front end is well serviced and the original rubber brake lines have been changed (they weaken/perish with age), but other than that, there's not much else to do.
