I rotated my wheels yesterday as the fronts are wearing out at an alarming rate.
Anyway, fronts came off no problem but both rears were almost welded onto the hub. It took a fair bit of kicking and swearing to get them to shift. What surprised me was that they've gone like that in only 14 months and 9k miles. Hopefully the smear of copper slip on each hub will make it easier the next time.
Luckily this was on my driveway in the sunshine and not on the side of some road at night in the rain. Worth checking yours before you're stuck with a flat tyre somewhere nasty.