We used this for a 6 day self guided walking tour. It always worked well, but it took a few uses to get the hang of how to access the built-in maps instead of having it give you directions in Apple Maps or Google Maps. This could be fixed easily just by renaming some controls.

This is a worthless app. We received it on the morning of our bike trip and found it so difficult to use. The font size is so small and hard to read. There are all sorts of annoying pop up messages that are hard to close when the IPhone is on the holder on the bike. The bands that hold the phone in place block the x to close the pop up. This app drains the iPhone battery very quickly. I was able to only have less than 3 hours of use before getting a low battery warning. Had I known this, I would have brought an external power pack. The display is hard to see in the bright sunlight and quality deteriorates when the iPhone gets hop in the holder. What is most annoying is that the app times out and the iPhone has to be opened with the passcode. This becomes dangerous when peddling and having to enter the code. This app is worthless and dangerous. It has so many annoying features and very poor functionality. Shame on the travel industry that promotes this product.