I have never used this App but have used Bwana Dik for a very long time and highly recommend it.
FYI: Since MacUpdate removed the feature to suggest and 'like' competing products this is the only way available to me to like and suggest products. Such a comment will always rate a '3' as I have no idea as to the functionality of the product.
I like this and use it to monitor my home IP when I'm away so if I need to remote in, I'm not frustrated if/when my ISP changes my public IP address. A couple of items/suggestions: 1) I get too many false alarms (same IP address). I'm not sure why this happens. 2) I'd like an option to schedule checks (once an hour, day, etc.), 3) Uptime is a nice touch, but it would be nice to have hours converted to days (I keep my Mac running all the time).