I did not find it very had to relearn the difference in bindings. Quite a lot are actually the same but one big difference is the selection before action rather than vims movement then action. Which IMO I find the helix way nicer after using it for a while. Never really lost the ability to use vim either and I can switch between them with relative ease. Though I do miss the helix way of working when I am forced to use vi input on things.
itslilith