Great bike but then I'm biased as I have one ; )
I agree it's the rider not the bike that determines safe or not but have to say not the ideal first big bike IMO. Although off the pace compared to latest one litre+ bikes it's still makes big power & torque, my 35k miles standard bike put out 126 brake at the wheel on a recent dyno run and would have added a bit more if strapped down and forced airflow. Combine this with handling that 'takes a bit of getting used to' and it needs to treated with real respect. The 'killer K' nickname is definitely over hyped but be under no illusion this bike will bite if you get it wrong and when it does you will need a big dose of skill, luck or both to keep it sunny side up!
Having said all that I've used mine for weekend blasts, touring in both uk and France, two up pootling and the odd track day (even caught some of latest 600's although don't expect to take on experienced track day boys!) and only dodgy moments have been of my own making.
Run decent tyres, get the suspension serviced, take time to learn how it turns and feedsback and enjoy. You'll certainly get more comments at bike meets than with a modern me too sports bike - if you like that sort of thing.
Wot colour scheme is yours?