the reason I advise against a spike for a beginner is that a sharp square point is much less forgiving of angle mistakes, especially when you are not applying even pressure along the length of the edge. (since it tends to dig in when pressure is brought to bear on it)

as long as you stay mindful of the point and where it is on your face, you should be ok. just one more thing to keep track of and try and build good habits with; when I was new at it I found that I cut myself a lot more with a spike because I would focus on other things like blade angle and pressure and inevitably forget about the point, and wind up dragging it across my earlobe or nose or something.

if you have a beard or other facial hair that requires great precision, a spike is a good choice. I keep a goatee myself, and when I shave, I do most of it with a wide round point, and then do detail work with a skinny (4/8) spike point.

your experience may be different, if you really like the look of the spike, go for it, just be aware that it is a tad trickier than the round point.