We used a Zoleo in Jul-Aug while travelling around SA, NT and most of the WA coast from the Kimberley to Esperance.
We opted for the extra tracking option (about $8/month) and selected the 1 hour reporting option (while moving). The phone app could do with a little polishing in its menu area but in general we were quite pleased with it.
It was straightforward for us to use and the family to communicate with.
We left it powered-on 24/7, sitting on the dash for 2 months getting charged whenever the vehicle was operating.
We had adequate sat signal strength in every place we tried to send a message.
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