I like that it has multiple ways of navigating through my website so as not get lost when looking at different pages or sections within one page! It's also easy enough if there isn't much going in certain areas (such as menus) but still gives options down into deeper levels where needed too!! If someone had told me about this program before hand i would have been able use other programs such as flash navigators which were more user friendly than what was given out by our IT department here.
This does work great though once set up correctly - just needs time/effort put towards setup :) We're using appnavis mainly because we can navigate around all parts of an ecommerce site from anywhere via mobile devices etc., rather then having people go back & forth between computers everytime something happens / changes throughout their order process.