Of limited use
On the positive side, the translations are clear and understandable and somewhat a good learning tool. On the negative side, the device depends on firing up my iPhone to establish the Wi-Fi connection. Also, one hope I had was to assist my in my pronunciation. After listening to a translation, when I try to repeat it to translate back to English, no matter how I try, the translation is not correct. I would be leery of using this in a actual verbal transaction with a person who spoke no English.