Here are some results from a poll with a similar question a few months ago:
How long does it take you to get a perfectly smooth shave from start to finish?
Less than 5 minutes!........................2
Between 5 and 15 minutes ..............17
Between 15 and 30 minutes ............38
Between 30 and 45 minutes ............23
Between 45 minutes and an hour .....2
1 hour + .......................................1
I stop when I cut myself ..................0
I always leave some stubble :(.........11
I don't shave but I want to vote anyway....0%