Not a bad overview, though I'd suggest a few things as you're getting ready to go "prime time" with a fact sheet like this:
1) You left out entirely any discussion of the various outside the waistband belt holsters, which are the most common styles used. [EDIT: See those listed in other thread.]
2) Provide more in-depth discussion to include a discussion of the different sub-options available with each design, e.g: vertical, horizontal, or inverted carry with a shoulder rig, "Thunderwear" vs. belly band for deep concealment, and so forth.
3) Be a bit more forthright with the criticisms of the negatives of the various systems. While everyone likes to be "nice," it doesn't help the potential user much if you don't suggest that a strong-side hip holster is not just a little bit better than a SOB holster for 99% of users. Or that a horizontal style shoulder holster might cause a less-than-heavy-set user to print unavoidably with a standard size handgun. And so forth. There are opinions, and then there are observations that are true for most people. Feel free to be a little more "opinionated."
4) Try to avoid very dangerously misleading statements like the idea that a deep concealment rig might get you past a metal detector. I think most users will not be tragically mislead, but you'd sure feel bad to hear about the fellow arrested because he took you at your word and tried to walk into his local courthouse or through airport security!
5) Basic editing. (Waste =/= waist, "... in hopes in can ..." etc.)
Otherwise, it looks like a good start! Is this intended to be part of your curriculum as you get your business off the ground?