I did not expect that it work with me that way. I loved the experience of the self-guided tour in Silicon Valley; however, you should take care of the following: 1. You must have a car because the spots are not close to each other. 2. You should be patient at the beginning to know how it works. Once , you understand how it works, it will be perfect with you. 3. The application will take you step by step, but it’s as accurate as google maps; so stick to the route so you can get the best benefit out of it. 4. If you gone away, do not worry; you can select the next stop and let google get you there. The tour application can connect you automatically with Google maps too. Feel free to ask me any questions if you need any assistance. Email: moamenomar@gmail.com Moamen