We use the Garmin Explorer Inreach and have had no issues with it. We got the full size one over the mini for a couple of reasons, first was reports of better reception due to a larger antenna from some friends that have used both. The second is that the Explorer has a good built in base map and is fully functional without a phone connected. If we are hiking or involved in some type of survival situation I do not want to rely on a tethered cell phone which will have less battery life and not as sturdy as the inreach. in addition the inreach will use more battery when tethered. We use the middle tier of service which gives 40 messages and unlimited check ins. we set our cookie drops to 30 minutes and leave the device on for the entire trip so those we have given access to the website can track and see where were to within 30 minutes if we do not check in on regular intervals. In the vehicle the unit live on a mount next to the drivers door so it does not get tossed during an accident and we can grab it on the way out the door or if trapped upside down.