They take a fair amount of getting used to, especially if you get an ortholinear variety. You might find yourself not really enjoying it out the gate, but it’ll force you into better typing posture and you’ll grow to love it over time and hate the times you have to type on a standard keyboard. I have an Ergodox and the ortholinear aspect took a while to get used to and settling into a function keys layout I liked took another good while. Expect to be worse at typing and less productive at the outset. Your hands and wrists will thank you in the long run, though.