Kudos for a mostly clean font! Your uppercase Q and double quotation marks are interesting.

Some constructive criticism to help cleanup the last few minor design issues to make it beautiful.

Technically this isn't a "Sans Serif" font as the lowercase 'i' and 'j' have serifs. :-/ Try cloning it with the second version without the serifs and compare the two versions to see which is more readable.

Also your ampersand is slightly 'gimped' on the top right side. At these small sizes it is too "fat". On the second row from the top, bring in the second pixel to give a sharper "kink" at the top.

Your question mark bottom isn't centered the same way your exclamation mark is.

Feel free to take a look at my font "program5x7b" if you want details on how to clean the couple stray glyphs up.
http://fontstruct.com/fontstructions/show/program5x7b

You have almost a perfect font!

Cheers
Michaelangelo

@Michaelangel007 // It is a sans font. The i, j serifs occur because they are monospaced, and the spacing gets off-kilter if you don't use serifs.