What's your first impression?

I read that it's a sales software...But the design looks a bit too "technical" and outdated to me.
Wondering what it's all about, I click the 'Why' menu button. I see a very long read (even for me).

Do you have a suggestion?

Change the design to smth more modern. For example, on the 'Why' page, determine a "selling" phrase for each section and make the section presentations short, bright (probably with banners or icons) but expendable or linked to more info.