I have been on the 737 two years now and I have never done a max x-wind takeoff or landing in the sim or on the line. The best I've done is 30 gusting 42 but it was only 40 degrees off the nose, but it was a great experience and it was very rewarding to manage it reasonably well without any help!
However I would like to do a sim session where they could give me repeated max x-wind takeoffs and landings with the associated turbulence. I know the sim is not great for this kind of thing but it would still help when it happens for real.