ztrack with long battery life

Did anyone tried or using ztrack GPS devices?? They are based on LoRA chipset and offers very good battery life.
Am trying to get one. So just thought of asking this community about experiences if anyone using them.
website like: http://ztrackmap.com/

Hello
Please let me know your opinion of the product after using it.
I am also interesting in GPS with transmission over LoRa.
Thanks.