The Integrity theme presents a unique opportunity for startups since the theme provides a beautiful, yet fun, design for looking professional and creative at the same time. This is a multipurpose theme for businesses and freelance portfolios.
The Font Awesome icons improve your visuals and the three column support could potentially turn your site into a magazine or blog. Use the 17 regions to organize your content and work with the multi-level menus for guiding people through your site and fitting more links to pages on your menu.
If you want a simple no-frills theme that just works out-of-the-box, Integrity may be your choice. It is a Drupal 8 only theme. Its feature set is, in general, at par with the rest of the themes. Integrity supports multi-level menus and slideshows that display up to 5 images. The layout includes a 3-column design. The theme has defined 17 regions into which Drupal blocks can be placed.
Integrity is a great choice for businesses needing a good looking, professional website.