Anyone know anything about nose piercings?

I really want to get my nose pierced. I just want a small, simple, subtle little stud. My mom has agreed to let me do it, but now I have some questions.

1) Will the piercing place let me choose to have a gun instead of a needle, or will they insist on using the needle?
2) Does it hurt a lot? On a scale of 1 – 10, how much does it hurt? Do the needles hurt more than the gun?
3) How long does it take to heal enough so that I can take it out for a day, and then easily put it back in?
4) Is the risk of an infection the same as an ear piercing, or more or less? Will I have to clean it every day?