Its great that the LBS let you take that beauty home for a test spin. Decisions decisions! A guy that I work with, his friend just bought this bike. No reports as of yet. Just got to see the pics. Good luck in your decision, can't give you any advice as I don't know much about any of those bikes. BUT if you're going to do it, do what you want and spend the money to make yourself happy. ( I like spending other peoples money )