Clean, minimalist, simple, elegant. Everything is easy to find, and the menus are easy to navigate; vivid graphics make it nice and gentle on eyes. 4 stars, because Ive experienced jitteriness on some of the pages, even on an IPad Air 2. A magnificent guide around the museum. Some audio problems need to be resolved, but its definitely great to begin with. To Who(m)soever made this: Fantastic work! :)