With a little patience and practice you'll be knocking out quality shave in no time.
I would guess that if your face can stand up to a multi pass shave with a fusion, you won't have too many problems with the HD after getting the technique down.
There is a wealth of info here to help with all of your questions/problems.
I would strong suggest that you aquire a tube of Proraso Cream (green) and a jar of Proraso Pre/Post. You can thank me after your first shave with them!
Think of how stupid the average person is, and realize half of them are stupider than that. - George Carlin