I’m a week into my Schwinn IC4 experience with Zwift. Absolutely love it.
Quiet, fit is good for my entire family, most affordable price, and 100% repeatable power output.
Yes - the power that Zwift reports seems to be a little bit high, about 10-15% over what the Spinner Chrono Power bikes reported at my local gym, but that doesn’t impact the quality of solo training in any manner - everything is based on the FTP measured on the same bike. It would be an advantage on group rides and races.
I’ve calibrated the bike once (see a good discussion at https://dataguy.me/2019/11/review-bowflex-c6-indoor-exercise-bike/ ), setting “100” to the last usable resistance just before the rubber brake hits the wheel.
If I recalibrate again, I would probably set 100 to the rubber brake totally cranked down on the wheel. I’m reluctant to do this too quickly as there is a lifetime max of 3 recalibrations (no idea why, but that’s how it is)
Anyways, the Schwinn IC4 has been in low stock or out-of-stock for a while. If you find one I highly recommend it as the most affordable Zwift option.