Purchased a pre registered K5 and the first ride was amazing. I never felt any need to adjust the standard suspension set up as it inspired so much confidence for my usual road riding. The brakes are phenomenal, which was just as well, as you tend to arrive at junctions and roundabouts at a greater rate of knots than expected unless you've kept your eye on the digital speedo. The classy blue and white colour scheme on the K5 is adoreable and whilst the paint on the tank may be a little thin the overall finish on the bike is superb. According to my significant other, the pillion seat whilst in the land of the gods, is comfy and doesn't look out of place on the bike, unlike some after thought on the K6 models. Even two up, you still don't need to redline it to pass cars, because of the extra grunt over the 600's. Complaints? well mirrors, like all sports bikes and for me, numb hands and painful wrists, that has resulted in the best bike I've ever owned (longest kept also)going to a new home. Sad? yes, but poor circulation is the culprit. Would highly recommend you try one as they really are probably the best all round sports package.