The best part about this program was that it allowed me to track my dog's activity in real time from anywhere I had an internet connection, which made life easier than ever! It would sometimes freeze up or not work at all when tracking multiple dogs simultaneously (which can be very helpful if you have more then one). Sometimes there were issues with GPS signal strength too - but they worked hard behind closed doors so we couldn't complain directly without being banned by their customer support team!! They're working really closely together now though as far backtracking some old problems are concerned :) We used k-nine sky mainly because our previous tracker didn’t allow us access online while away travelling etc., allowing easy remote monitoring & control over any situation where your pup could get lost/strayed off course during training sessions / walks outside city limits.