The realtime collaboration was just straight up broken; as in, my collaborator would make changes that would not manifest until I refreshed. This is unacceptable.
The PCB tracing was unusable because you could not control the wires and things would appear in strange places. Forget auto-routing... I had trouble just getting it to connect wires.
I could go on at (great) length, but while I genuinely am rooting for the team behind this product, I can't recommend it until they prioritize getting the fundamentals working properly over adding new AI features.
That said, in attempting to work through these issues, I gained a healthy amount of respect for how hard it is to create a viable new entry in this domain. For whatever reason, it often seems culturally normalized to shit on Flux and I think this is toxic and unproductive.