Make it easier to charge.
When adequately charged it seems to work fine.  My dog has set it off a few times.  I am glad that the fall detector gives you a chance to cancel the alert.  The fall detector has activated a few times when I bumped it accidentally.  The thing which I find most aggravating is trying to get the unit to sit properly so that it will charge.  I have had three different units and asked them to be replaced, thinking this was a defect.  Unfortunately I have had the same difficulty with all of them.  I find it necessary to jiggle the unit around in the charging base, sometimes as much as five minutes to get it to charge properly.  It is sad that a unit which works so well otherwise is so hard to get it to charge.  It would seem that the company which makes the unit could make it a little easier to use.
Rating: 3 stars