How much would it benefit me if I purchased the Apple Aiport Express?

As of now I own a Netgear N-150, but as you get to the back of my house you get a really weak signal. So for Christmas I have been looking in to getting the Apple Airport Express. I'm just wanting to know if its going to help with the range problems and if it will increase the speed. Just to let anyone know the only items we use are 3 ipads and a couple of iphones.

No, it won't. There are much better routers out there, and if you have range problems, just get an extender.