Briefly checked, seems fine, just setup 3G sim card's apn, by sms, and login online to see it on the map. Android app, for 5.1 version, hangs at startup unfortunately, hope they will fix it in the future. To see how to insert sim card, you need to search on youtube, there is no indication in the manual.
Fast shipping, but on first try we could not connect to app. On manual are different codes than they actualy work. I contacted seller and then found out about different settings. Now everything works. App works perfect!!