Mine is up and running and doing fine. I just have the move function turned on which texts me if the boat moves more than 200 meters away from the location its in when I sent the "move" command.
I like the fact you can text monitor to the unit and then when you dial it up you can hear what is going on as the built in MIC kicks in
One word of warning....
You get a piece of software with the device that allows you to set up a proper monitoring suite on your PC. You have to use a GPRS enabled SIM and then open up a port on your PC that will allow you to communicate with the device.
Sounds nice but I can honestly say that after about 5 hours of fecking about with my PC and sending texts every 5 mins I actually think it has given me a brain tumour.
My advice.. don't even think about trying the GPS Software suite.