I normally take what reviewers say about things with more than just a grain of salt. That goes for car, bike, and even movie reviews.
But in this case, for me (being a bigger guy at 6'-2", 255 pounds) I feel you are right on with the review. I was not impressed at all with the ryker. For me, it was also just too small and cheap feeling. But on the other hand, I would love to convince the wife to give the 600 a try. For her smaller size and weight, along with her limited use of the vehicle, it would probably be perfect. If we have one in my garage, I will definitely drive it. But since that is not going to happen, I will possibly pick up a used RSS for running errands one day.