I have the flywheel knocking. Was too loud to use so have been using my kickr as a placeholder.
Having contacted Stages, and gone to their UK distributors i was responded to quickly, and they delegated to a repair company who have done a temp fix with spray and slackening off of the wheel. However, I will be getting their V2 flywheel which is updated and washers which not only is a perm fix but makes it even quieter. I an on the list so hopefully it wont be too long. Going forward batches will come with this so not an issue for people buying in the future, but it think they are systematically replacing all wheels
The software is great on the mid-long intervals, a bit slower than the kickr in the ramp up on the shorter sprints but i like the gearing that can be setup to whatever you like so i can use manual gearing to get instant changes and for this type of work works well.
I admit the wheel issue was quite annoying, but the bike is built like a tank, super easy to live with and adjust and once this is resolved it was the right decision. I would recommend them.