The thing that strikes me as weird about Cypress is that, while the DX is quite nice, their core claim of being an end-to-end testing experience is, for the most part, not true. You can see that in how most events are simulated instead of native. As such, we're not really simulating user experience, and in fact the accuracy of testing doesn't seem to be meaningfully better than what's available in Karma.

DX is fantastic, of course, but I'd feel quite uncomfortable in committing to a commercial offering that I thought was being less than fully honest in what they were offering, just as a matter of trust.

It really is a great test runner on its own merits, though.