Climbing is rated class 1 to class 6. The trail is class 1, simple hiking. The MR is class 3. Serious rock climbing, with ropes and hardware, is class 5.
For one day climbs, permits are necessary, but they may not be hard to get, off-season and mid-week. An advanced reservation costs $3? per person, at last I checked. It may be more now.
The way this winter is going, you might not need any special equipment depending what time of year you're doing this. After July the snow may be all gone, this year. And, if there is still some snow, on a warm day, crampons might not be needed. You can often kick steps, and use just an ice axe.
Of course, if one has acrophobia, some may wish a rope, but then they shouldn't be up there in that case.
Check back on this message board--there are plenty of links to photos to show you what the route looks like, and it isn't a real big deal. Many people do it.
Good luck!