I was riding a full carbon Kestrel road bike that I had customized everything but the frame and seat post - SRAM red e-tap electronic - Absolute Black oval chain rings - integrated drop bars - the works. I wasn’t about to give those components up, and I knew selling the bike would be an exercise in futility. I chose the S40 simple because of the more upright positioning from the V20 - I watched a video of a semi-pro rider on a V20 for the first time and saw how flat and difficult a time he had, and that helped make my decision. I still haven’t gotten enough miles under my belt on my S40 to honestly say it was the “best decision”, but I am fairly certain it is going to be great. And, I know I am not experiencing the neck pain and numbness I was experiencing from the road bike and the pinched nerve in my neck.
Good luck with your decision - I know I am very impressed with the Cruzbike staff and owners - they are very down-to-earth and helpful and genuinely concerned about adding riders to their “family”