The ease of use and options for navigation (e.g. the Revit option if the user is more familiar with that). It also runs very quick (compared to trying to view a model in Revit), thus making checks and measurements of dimensions very convenient. The clash detection integration with Revit also makes things very seamless if we wish to jump directly into Revit to resolve a clash detected in Revizto. Lastly, the ability to simply zoom in and enter/phase through surfaces and objects is very handy (compared to Revit where it simply only magnifies what your current view).